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nerve</title> <meta name="description" content="Search results for: optic nerve"> <meta name="keywords" content="optic nerve"> <meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no"> <meta charset="utf-8"> <link href="https://cdn.waset.org/favicon.ico" type="image/x-icon" rel="shortcut icon"> <link href="https://cdn.waset.org/static/plugins/bootstrap-4.2.1/css/bootstrap.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/plugins/fontawesome/css/all.min.css" rel="stylesheet"> <link href="https://cdn.waset.org/static/css/site.css?v=150220211555" rel="stylesheet"> </head> <body> <header> <div class="container"> <nav class="navbar navbar-expand-lg navbar-light"> <a class="navbar-brand" href="https://waset.org"> <img src="https://cdn.waset.org/static/images/wasetc.png" alt="Open Science Research Excellence" title="Open Science Research Excellence" /> </a> <button class="d-block d-lg-none navbar-toggler ml-auto" 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id="custom-search-input"> <div class="input-group"> <i class="fas fa-search"></i> <input type="text" class="search-query" name="q" placeholder="Author, Title, Abstract, Keywords" value="optic nerve"> <input type="submit" class="btn_search" value="Search"> </div> </div> </form> </div> </div> <div class="row mt-3"> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Commenced</strong> in January 2007</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Frequency:</strong> Monthly</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Edition:</strong> International</div> </div> </div> <div class="col-sm-3"> <div class="card"> <div class="card-body"><strong>Paper Count:</strong> 370</div> </div> </div> </div> <h1 class="mt-3 mb-3 text-center" style="font-size:1.6rem;">Search results for: optic nerve</h1> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">370</span> Optic Nerve Sheath Measurement in Children with Head Trauma </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sabiha%20Sahin">Sabiha Sahin</a>, <a href="https://publications.waset.org/abstracts/search?q=Kursad%20Bora%20Carman"> Kursad Bora Carman</a>, <a href="https://publications.waset.org/abstracts/search?q=Coskun%20Yarar"> Coskun Yarar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Measuring the diameter of the optic nerve sheath is a noninvasive and easy to use imaging technique to predict intracranial pressure in children and adults. The aim was to measure the diameter of the optic nerve sheath in pediatric head trauma. Methods: The study group consisted of 40 children with healthy and 40 patients with head trauma. Transorbital sonographic measurement of the optic nerve sheath diameter was performed. Conclusion: The mean diameters of the optic nerve sheath of right and left eyes were 0.408 ± 0.064 mm and 0.417 ± 0.065 mm, respectively, in the trauma group. These results were higher in patients than in control group. There was a negative correlation between optic nerve sheath diameters and Glasgow Coma Scales in patients with head trauma (p < 0.05). There was a positive correlation between optic nerve sheath diameters and positive CT findings, systolic blood pressure in patients with head trauma. The clinical status of the patients at admission, blood pH and lactate level were related to the optic nerve sheath diameter. Conclusion: Measuring the diameter of the optic nerve sheath is not an invasive technique and can be easily used to predict increased intracranial pressure and to prevent secondary brain injury. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=head%20trauma" title="head trauma">head trauma</a>, <a href="https://publications.waset.org/abstracts/search?q=intracranial%20pressure" title=" intracranial pressure"> intracranial pressure</a>, <a href="https://publications.waset.org/abstracts/search?q=optic%20nerve" title=" optic nerve"> optic nerve</a>, <a href="https://publications.waset.org/abstracts/search?q=sonography" title=" sonography"> sonography</a> </p> <a href="https://publications.waset.org/abstracts/104676/optic-nerve-sheath-measurement-in-children-with-head-trauma" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/104676.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">158</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">369</span> Drastic Improvement in Vision Following Surgical Excision of Juvenile Nasopharyngeal Angiofibroma with Compressive Optic Neuropathy</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sweta%20Das">Sweta Das</a> </p> <p class="card-text"><strong>Abstract:</strong></p> This case report is a 15-year-old male who presented with painless unilateral vision loss from left optic nerve compression due to juvenile nasopharyngeal angiofibroma. JNA is a rare, benign neoplasm that causes intracranial and intraorbital bone destruction and extends aggressively into surrounding soft tissues. It accounts for <1% of all head and neck tumors, is predominantly found in pediatric males and tends to affect indigenous population disproportionately. The most common presenting symptom for JNA is epistaxis and nasal obstruction. However, it can invade orbit, chiasm and pituitary gland, causing loss of vision and field. Visual acuity and function near normalized following surgical excision. Optometry plays an important role in the diagnosis and co-management of JNA with optic nerve compression by closely monitoring afferent optic nerve function and structure, and extraocular motility. Visual function and acuity in patients with short-term compressive neuropathy may drastically improve following surgical resection as this case demonstrates. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=orbital%20mass" title="orbital mass">orbital mass</a>, <a href="https://publications.waset.org/abstracts/search?q=painless%20monocular%20vision%20loss" title=" painless monocular vision loss"> painless monocular vision loss</a>, <a href="https://publications.waset.org/abstracts/search?q=compressive%20optic%20neuropathy" title=" compressive optic neuropathy"> compressive optic neuropathy</a>, <a href="https://publications.waset.org/abstracts/search?q=pediatric%20tumor" title=" pediatric tumor"> pediatric tumor</a> </p> <a href="https://publications.waset.org/abstracts/177871/drastic-improvement-in-vision-following-surgical-excision-of-juvenile-nasopharyngeal-angiofibroma-with-compressive-optic-neuropathy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/177871.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">59</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">368</span> Central Retinal Venous Occlusion Associated O Bilateral Optic Nerve Infiltration Revealing Relapse Of An Acute Lymphoblastic Leukemia</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Fendouli%20Ines">Fendouli Ines</a>, <a href="https://publications.waset.org/abstracts/search?q=Zaafrane%20Nesrine"> Zaafrane Nesrine</a>, <a href="https://publications.waset.org/abstracts/search?q=Mhamdi%20Hana"> Mhamdi Hana</a>, <a href="https://publications.waset.org/abstracts/search?q=Knani%20Leila"> Knani Leila</a>, <a href="https://publications.waset.org/abstracts/search?q=Ghorbel%20Mohamed"> Ghorbel Mohamed</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Ocular infiltration of leukemia can involve orbit, uveal tract, retina and optic nerve. It may result from direct ocular infiltration by leukemic cells or indirect ocular involvement resulting from secondary hematologic changes, opportunistic infections and complications of various modalities of therapy. We here in report a case of central venous retinal occlusion associated to optic nerve infiltration as presenting signs of a relapse of acute lymphoblastic leukemia. Case Report: A twelve-year-old male -patient of acute B lymphoblastic leukemia presented with headaches and bilateral blurred vision in the left ee. Ophthalmic examination showed a visual acuity reduced to counting fingers in the right eye and no light perception in the left eye. Funduscopy revealed a voluminous disc edema surrounded by retinal haemorrhages in the right eye, and venous tortusities, papillary edema, and hemorrages suggesting central retinal venous occlusion in the LE. Swept source optical coherence tomography revealed a serous retinal detachment in the RE and .hyperreflective inner layers with macular edema in the left eye. Cerebro-orbital MRI showed bilateral thickened left optic nerve. There were no radiological signs of true papillary edema due to intracranial hypertension secondary to central nervous system involvement. Myelogram and lumbar punction demonstrated blast infiltration and confirmed ocular relapse of the leukemia. Conclusion: Ocular involvement lymphoblastic acute leukemias decreased since the introduction of a systematic prophylactic treatment of central nervous system. Periodic ophthalmic examination is necessary to allow early diagnosis and treatment. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=acute%20leukemia" title="acute leukemia">acute leukemia</a>, <a href="https://publications.waset.org/abstracts/search?q=optic%20nerve" title=" optic nerve"> optic nerve</a>, <a href="https://publications.waset.org/abstracts/search?q=infiltration" title=" infiltration"> infiltration</a>, <a href="https://publications.waset.org/abstracts/search?q=relapse" title=" relapse"> relapse</a> </p> <a href="https://publications.waset.org/abstracts/167221/central-retinal-venous-occlusion-associated-o-bilateral-optic-nerve-infiltration-revealing-relapse-of-an-acute-lymphoblastic-leukemia" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/167221.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">90</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">367</span> Overview of Fiber Optic Gyroscopes as Ring Laser Gyros and Fiber Optic Gyros and the Comparison Between Them</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Abdo">M. Abdo</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Shalaby"> Mohamed Shalaby</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A key development in the field of inertial sensors, fiber-optic gyroscopes (FOGs) are currently thought to be a competitive alternative to mechanical gyroscopes for inertial navigation and control applications. For the past few years, research and development efforts have been conducted all around the world using the FOG as a crucial sensor for high-accuracy inertial navigation systems. The main fundamentals of optical gyros were covered in this essay, followed by discussions of the main types of optical gyros and fiber optic gyroscopes and ring laser gyroscopes and comparisons between them. We also discussed different types of fiber optic gyros, including interferometric, resonator, and Brillion fiber optic gyroscopes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mechanical%20gyros" title="mechanical gyros">mechanical gyros</a>, <a href="https://publications.waset.org/abstracts/search?q=ring%20laser%20gyros" title=" ring laser gyros"> ring laser gyros</a>, <a href="https://publications.waset.org/abstracts/search?q=interferometric%20finer%20optic%20gyros" title=" interferometric finer optic gyros"> interferometric finer optic gyros</a>, <a href="https://publications.waset.org/abstracts/search?q=Resonator%20fiber%20optic%20gyros" title=" Resonator fiber optic gyros"> Resonator fiber optic gyros</a> </p> <a href="https://publications.waset.org/abstracts/168331/overview-of-fiber-optic-gyroscopes-as-ring-laser-gyros-and-fiber-optic-gyros-and-the-comparison-between-them" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168331.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">80</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">366</span> Close Loop Controlled Current Nerve Locator</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=H.%20A.%20Alzomor">H. A. Alzomor</a>, <a href="https://publications.waset.org/abstracts/search?q=B.%20K.%20Ouda"> B. K. Ouda</a>, <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Eldeib"> A. M. Eldeib</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Successful regional anesthesia depends upon precise location of the peripheral nerve or nerve plexus. Locating peripheral nerves is preferred to be done using nerve stimulation. In order to generate a nerve impulse by electrical means, a minimum threshold stimulus of current “rheobase” must be applied to the nerve. The technique depends on stimulating muscular twitching at a close distance to the nerve without actually touching it. Success rate of this operation depends on the accuracy of current intensity pulses used for stimulation. In this paper, we will discuss a circuit and algorithm for closed loop control for the current, theoretical analysis and test results and compare them with previous techniques. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=Close%20Loop%20Control%20%28CLC%29" title="Close Loop Control (CLC)">Close Loop Control (CLC)</a>, <a href="https://publications.waset.org/abstracts/search?q=constant%20current" title=" constant current"> constant current</a>, <a href="https://publications.waset.org/abstracts/search?q=nerve%20locator" title=" nerve locator"> nerve locator</a>, <a href="https://publications.waset.org/abstracts/search?q=rheobase" title=" rheobase"> rheobase</a> </p> <a href="https://publications.waset.org/abstracts/2622/close-loop-controlled-current-nerve-locator" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/2622.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">253</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">365</span> Overview of Fiber Optic Gyroscopes</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Abdo">M. Abdo</a>, <a href="https://publications.waset.org/abstracts/search?q=Ahmed%20Elghandour"> Ahmed Elghandour</a>, <a href="https://publications.waset.org/abstracts/search?q=Khairy%20Eltahlawy"> Khairy Eltahlawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamed%20Shalaby"> Mohamed Shalaby</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A key development in the field of inertial sensors, fiber-optic gyroscopes (FOGs) are currently thought to be a competitive alternative to mechanical gyroscopes for inertial navigation and control applications. For the past few years, research and development efforts have been conducted all around the world using the FOG as a crucial sensor for high-accuracy inertial navigation systems. The main fundamentals of optical gyros were covered in this essay, followed by discussions of the main types of optical gyros—fiber optic gyroscopes and ring laser gyroscopes—and comparisons between them. We also discussed different types of fiber optic gyros, including interferometric, resonator, and brillion fiber optic gyroscopes. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=mechanical%20gyros" title="mechanical gyros">mechanical gyros</a>, <a href="https://publications.waset.org/abstracts/search?q=ring%20laser%20gyros" title=" ring laser gyros"> ring laser gyros</a>, <a href="https://publications.waset.org/abstracts/search?q=interferometric%20fiber%20optic%20gyros" title=" interferometric fiber optic gyros"> interferometric fiber optic gyros</a>, <a href="https://publications.waset.org/abstracts/search?q=resonator%20fiber%20optic%20gyros" title=" resonator fiber optic gyros"> resonator fiber optic gyros</a> </p> <a href="https://publications.waset.org/abstracts/168383/overview-of-fiber-optic-gyroscopes" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/168383.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">85</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">364</span> A Nanofi Brous PHBV Tube with Schwann Cell as Artificial Nerve Graft Contributing to Rat Sciatic Nerve Regeneration across a 30-Mm Defect Bridge</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Esmaeil%20Biazar">Esmaeil Biazar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> A nanofibrous PHBV nerve conduit has been used to evaluate its efficiency based on the promotion of nerve regeneration in rats. The designed conduits were investigated by physical, mechanical and microscopic analyses. The conduits were implanted into a 30-mm gap in the sciatic nerves of the rats. Four months after surgery, the regenerated nerves were evaluated by macroscopic assessments and histology. This polymeric conduit had sufficiently high mechanical properties to serve as a nerve guide. The results demonstrated that in the nanofibrous graft with cells, the sciatic nerve trunk had been reconstructed with restoration of nerve continuity and formatted nerve fibers with myelination. For the grafts especially the nanofibrous conduits with cells, muscle cells of gastrocnemius on the operated side were uniform in their size and structures. This study proves the feasibility of artificial conduit with Schwann cells for nerve regeneration by bridging a longer defect in a rat model. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=sciatic%20regeneration" title="sciatic regeneration">sciatic regeneration</a>, <a href="https://publications.waset.org/abstracts/search?q=Schwann%20cell" title=" Schwann cell"> Schwann cell</a>, <a href="https://publications.waset.org/abstracts/search?q=artificial%20conduit" title=" artificial conduit"> artificial conduit</a>, <a href="https://publications.waset.org/abstracts/search?q=nanofibrous%20PHBV" title=" nanofibrous PHBV"> nanofibrous PHBV</a>, <a href="https://publications.waset.org/abstracts/search?q=histological%20assessments" title=" histological assessments"> histological assessments</a> </p> <a href="https://publications.waset.org/abstracts/21190/a-nanofi-brous-phbv-tube-with-schwann-cell-as-artificial-nerve-graft-contributing-to-rat-sciatic-nerve-regeneration-across-a-30-mm-defect-bridge" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/21190.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">323</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">363</span> Intracranial Hypertension without CVST in Apla Syndrome: An Unique Association</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Camelia%20Porey">Camelia Porey</a>, <a href="https://publications.waset.org/abstracts/search?q=Binaya%20Kumar%20Jaiswal"> Binaya Kumar Jaiswal</a> </p> <p class="card-text"><strong>Abstract:</strong></p> BACKGROUND: Antiphospholipid antibody (APLA) syndrome is an autoimmune disorder predisposing to thrombotic complications affecting CNS either by arterial vasooclusion or venous thrombosis. Cerebral venous sinus thrombosis (CVST) secondarily causes raised intracranial pressure (ICP). However, intracranial hypertension without evidence of CVST is a rare entity. Here we present two cases of elevated ICP with absence of identifiable CVST. CASE SUMMARY: Case 1, 28-year female had a 2 months history of holocranial headache followed by bilateral painless vision loss reaching lack of light perception over 20 days. CSF opening pressure was elevated. Fundoscopy showed bilateral grade 4 papilledema. MRI revealed a partially empty sella with bilateral optic nerve tortuosity. Idiopathic intracranial hypertension (IIH) was diagnosed. With acetazolamide, there was complete resolution of the clinical and radiological abnormalities. 5 months later she presented with acute onset right-sided hemiparesis. MRI was suggestive of acute left MCA infarct.MR venogram was normal. APLA came positive with high titres of Anticardiolipin and Beta 2 glycoprotein both IgG and IgM. Case 2, 23-year female, presented with headache and diplopia of 2 months duration. CSF pressure was elevated and Grade 3 papilledema was seen. MRI showed bilateral optic nerve hyperintensities with nerve head protrusion with normal MRV. APLA profile showed elevated beta 2 glycoprotein IgG and IgA. CONCLUSION: This is an important non thrombotic complication of APLA syndrome and requires further large-scale study for insight into the pathogenesis and early recognition to avoid future complications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=APLA%20syndrome" title="APLA syndrome">APLA syndrome</a>, <a href="https://publications.waset.org/abstracts/search?q=idiopathic%20intracranial%20hypertension" title=" idiopathic intracranial hypertension"> idiopathic intracranial hypertension</a>, <a href="https://publications.waset.org/abstracts/search?q=MR%20venogram" title=" MR venogram"> MR venogram</a>, <a href="https://publications.waset.org/abstracts/search?q=papilledema" title=" papilledema"> papilledema</a> </p> <a href="https://publications.waset.org/abstracts/147679/intracranial-hypertension-without-cvst-in-apla-syndrome-an-unique-association" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/147679.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">176</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">362</span> Limbic Involvement in Visual Processing</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Deborah%20Zelinsky">Deborah Zelinsky</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The retina filters millions of incoming signals into a smaller amount of exiting optic nerve fibers that travel to different portions of the brain. Most of the signals are for eyesight (called "image-forming" signals). However, there are other faster signals that travel "elsewhere" and are not directly involved with eyesight (called "non-image-forming" signals). This article centers on the neurons of the optic nerve connecting to parts of the limbic system. Eye care providers are currently looking at parvocellular and magnocellular processing pathways without realizing that those are part of an enormous "galaxy" of all the body systems. Lenses are modifying both non-image and image-forming pathways, taking A.M. Skeffington's seminal work one step further. Almost 100 years ago, he described the Where am I (orientation), Where is It (localization), and What is It (identification) pathways. Now, among others, there is a How am I (animation) and a Who am I (inclination, motivation, imagination) pathway. Classic eye testing considers pupils and often assesses posture and motion awareness, but classical prescriptions often overlook limbic involvement in visual processing. The limbic system is composed of the hippocampus, amygdala, hypothalamus, and anterior nuclei of the thalamus. The optic nerve's limbic connections arise from the intrinsically photosensitive retinal ganglion cells (ipRGC) through the "retinohypothalamic tract" (RHT). There are two main hypothalamic nuclei with direct photic inputs. These are the suprachiasmatic nucleus and the paraventricular nucleus. Other hypothalamic nuclei connected with retinal function, including mood regulation, appetite, and glucose regulation, are the supraoptic nucleus and the arcuate nucleus. The retino-hypothalamic tract is often overlooked when we prescribe eyeglasses. Each person is different, but the lenses we choose are influencing this fast processing, which affects each patient's aiming and focusing abilities. These signals arise from the ipRGC cells that were only discovered 20+ years ago and do not address the campana retinal interneurons that were only discovered 2 years ago. As eyecare providers, we are unknowingly altering such factors as lymph flow, glucose metabolism, appetite, and sleep cycles in our patients. It is important to know what we are prescribing as the visual processing evaluations expand past the 20/20 central eyesight. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=neuromodulation" title="neuromodulation">neuromodulation</a>, <a href="https://publications.waset.org/abstracts/search?q=retinal%20processing" title=" retinal processing"> retinal processing</a>, <a href="https://publications.waset.org/abstracts/search?q=retinohypothalamic%20tract" title=" retinohypothalamic tract"> retinohypothalamic tract</a>, <a href="https://publications.waset.org/abstracts/search?q=limbic%20system" title=" limbic system"> limbic system</a>, <a href="https://publications.waset.org/abstracts/search?q=visual%20processing" title=" visual processing"> visual processing</a> </p> <a href="https://publications.waset.org/abstracts/174552/limbic-involvement-in-visual-processing" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/174552.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">85</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">361</span> Utility of Optical Coherence Tomography (OCT) and Visual Field Assessment in Neurosurgical Patients</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ana%20Ferreira">Ana Ferreira</a>, <a href="https://publications.waset.org/abstracts/search?q=Ines%20Costa"> Ines Costa</a>, <a href="https://publications.waset.org/abstracts/search?q=Patricia%20Pol%C3%B3nia"> Patricia Polónia</a>, <a href="https://publications.waset.org/abstracts/search?q=Josu%C3%A9%20Pereira"> Josué Pereira</a>, <a href="https://publications.waset.org/abstracts/search?q=Olinda%20Faria"> Olinda Faria</a>, <a href="https://publications.waset.org/abstracts/search?q=Pedro%20Alberto%20Silva"> Pedro Alberto Silva</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Introduction: Optical coherence tomography (OCT) and visual field tools are pivotal in evaluating neurological deficits and predicting potential visual improvement following surgical decompression in neurosurgical patients. Despite their clinical significance, a comprehensive understanding of their utility in this context is lacking in the literature. This study aims to elucidate the applications of OCT and visual field assessment, delineating distinct patterns of visual deficit presentations within the studied cohort. Methods: This retrospective analysis considered all adult patients who underwent a single surgery for pituitary adenoma or anterior skull base meningioma with optic nerve involvement, coupled with neuro-ophthalmology evaluation, between July 2020 and January 2023. A minimum follow-up period of 6 months was deemed essential. Results: A total of 24 patients, with a median age of 61, were included in the analysis. Three primary patterns emerged: 1) Low visual field involvement with compromised OCT, 2) High visual field involvement with relatively unaffected OCT, and 3) Significant compromise observed in both OCT and visual fields. Conclusion: This study delineates various findings in OCT and visual field assessments with illustrative examples. Based on the current findings, a prospective cohort will be systematically collected to further investigate and validate these patterns and their prognostic significance, enhancing our understanding of the utility of OCT and visual fields in neurosurgical patients. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=OCT" title="OCT">OCT</a>, <a href="https://publications.waset.org/abstracts/search?q=neurosurgery" title=" neurosurgery"> neurosurgery</a>, <a href="https://publications.waset.org/abstracts/search?q=visual%20field" title=" visual field"> visual field</a>, <a href="https://publications.waset.org/abstracts/search?q=optic%20nerve" title=" optic nerve"> optic nerve</a> </p> <a href="https://publications.waset.org/abstracts/184220/utility-of-optical-coherence-tomography-oct-and-visual-field-assessment-in-neurosurgical-patients" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/184220.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">78</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">360</span> Survey on Fiber Optic Deployment for Telecommunications Operators in Ghana: Coverage Gap, Recommendations and Research Directions</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Francis%20Padi">Francis Padi</a>, <a href="https://publications.waset.org/abstracts/search?q=Solomon%20Nunoo"> Solomon Nunoo</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20Kojo%20Annan"> John Kojo Annan</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The paper "Survey on Fiber Optic Deployment for Telecommunications Operators in Ghana: Coverage Gap, Recommendations and Research Directions" presents a comprehensive survey on the deployment of fiber optic networks for telecommunications operators in Ghana. It addresses the challenges encountered by operators using microwave transmission systems for backhauling traffic and emphasizes the advantages of deploying fiber optic networks. The study delves into the coverage gap, provides recommendations, and outlines research directions to enhance the telecommunications infrastructure in Ghana. Additionally, it evaluates next-generation optical access technologies and architectures tailored to operators' needs. The paper also investigates current technological solutions and regulatory, technical, and economical dimensions related to sharing mobile telecommunication networks in emerging countries. Overall, this paper offers valuable insights into fiber optic network deployment for telecommunications operators in Ghana and suggests strategies to meet the increasing demand for data and mobile applications. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=survey%20on%20fiber%20optic%20deployment" title="survey on fiber optic deployment">survey on fiber optic deployment</a>, <a href="https://publications.waset.org/abstracts/search?q=coverage%20gap" title=" coverage gap"> coverage gap</a>, <a href="https://publications.waset.org/abstracts/search?q=recommendations" title=" recommendations"> recommendations</a>, <a href="https://publications.waset.org/abstracts/search?q=research%20directions" title=" research directions"> research directions</a> </p> <a href="https://publications.waset.org/abstracts/189425/survey-on-fiber-optic-deployment-for-telecommunications-operators-in-ghana-coverage-gap-recommendations-and-research-directions" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/189425.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">21</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">359</span> A Polyimide Based Split-Ring Neural Interface Electrode for Neural Signal Recording</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Ning%20Xue">Ning Xue</a>, <a href="https://publications.waset.org/abstracts/search?q=Srinivas%20Merugu"> Srinivas Merugu</a>, <a href="https://publications.waset.org/abstracts/search?q=Ignacio%20Delgado%20Martinez"> Ignacio Delgado Martinez</a>, <a href="https://publications.waset.org/abstracts/search?q=Tao%20Sun"> Tao Sun</a>, <a href="https://publications.waset.org/abstracts/search?q=John%20Tsang"> John Tsang</a>, <a href="https://publications.waset.org/abstracts/search?q=Shih-Cheng%20Yen"> Shih-Cheng Yen</a> </p> <p class="card-text"><strong>Abstract:</strong></p> We have developed a polyimide based neural interface electrode to record nerve signals from the sciatic nerve of a rat. The neural interface electrode has a split-ring shape, with four protruding gold electrodes for recording, and two reference gold electrodes around the split-ring. The split-ring electrode can be opened up to encircle the sciatic nerve. The four electrodes can be bent to sit on top of the nerve and hold the device in position, while the split-ring frame remains flat. In comparison, while traditional cuff electrodes can only fit certain sizes of the nerve, the developed device can fit a variety of rat sciatic nerve dimensions from 0.6 mm to 1.0 mm, and adapt to the chronic changes in the nerve as the electrode tips are bendable. The electrochemical impedance spectroscopy measurement was conducted. The gold electrode impedance is on the order of 10 kΩ, showing excellent charge injection capacity to record neural signals. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=impedance" title="impedance">impedance</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20interface" title=" neural interface"> neural interface</a>, <a href="https://publications.waset.org/abstracts/search?q=split-ring%20electrode" title=" split-ring electrode"> split-ring electrode</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20signal%20recording" title=" neural signal recording"> neural signal recording</a> </p> <a href="https://publications.waset.org/abstracts/6287/a-polyimide-based-split-ring-neural-interface-electrode-for-neural-signal-recording" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/6287.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">375</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">358</span> Study on Intensity Modulated Non-Contact Optical Fiber Vibration Sensors of Different Configurations</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Dinkar%20Dantala">Dinkar Dantala</a>, <a href="https://publications.waset.org/abstracts/search?q=Kishore%20Putha"> Kishore Putha</a>, <a href="https://publications.waset.org/abstracts/search?q=Padmavathi%20Manchineelu"> Padmavathi Manchineelu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Optical fibers are widely used in the measurement of several physical parameters like temperature, pressure, vibrations etc. Measurement of vibrations plays a vital role in machines. In this paper, three fiber optic non-contact vibration sensors were discussed, which are designed based on the principle of light intensity modulation. The Dual plastic optical fiber, Fiber optic fused 1x2 coupler and Fiber optic fused 2x2 coupler vibration sensors are compared based on range of frequency, resolution and sensitivity. It is to conclude that 2x2 coupler configuration shows better response than other two sensors. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fiber%20optic" title="fiber optic">fiber optic</a>, <a href="https://publications.waset.org/abstracts/search?q=PMMA" title=" PMMA"> PMMA</a>, <a href="https://publications.waset.org/abstracts/search?q=vibration%20sensor" title=" vibration sensor"> vibration sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=intensity-modulated" title=" intensity-modulated"> intensity-modulated</a> </p> <a href="https://publications.waset.org/abstracts/66225/study-on-intensity-modulated-non-contact-optical-fiber-vibration-sensors-of-different-configurations" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66225.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">370</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">357</span> Segmenting 3D Optical Coherence Tomography Images Using a Kalman Filter</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Deniz%20Guven">Deniz Guven</a>, <a href="https://publications.waset.org/abstracts/search?q=Wil%20Ward"> Wil Ward</a>, <a href="https://publications.waset.org/abstracts/search?q=Jinming%20Duan"> Jinming Duan</a>, <a href="https://publications.waset.org/abstracts/search?q=Li%20Bai"> Li Bai</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Over the past two decades or so, Optical Coherence Tomography (OCT) has been used to diagnose retina and optic nerve diseases. The retinal nerve fibre layer, for example, is a powerful diagnostic marker for detecting and staging glaucoma. With the advances in optical imaging hardware, the adoption of OCT is now commonplace in clinics. More and more OCT images are being generated, and for these OCT images to have clinical applicability, accurate automated OCT image segmentation software is needed. Oct image segmentation is still an active research area, as OCT images are inherently noisy, with the multiplicative speckling noise. Simple edge detection algorithms are unsuitable for detecting retinal layer boundaries in OCT images. Intensity fluctuation, motion artefact, and the presence of blood vessels also decrease further OCT image quality. In this paper, we introduce a new method for segmenting three-dimensional (3D) OCT images. This involves the use of a Kalman filter, which is commonly used in computer vision for object tracking. The Kalman filter is applied to the 3D OCT image volume to track the retinal layer boundaries through the slices within the volume and thus segmenting the 3D image. Specifically, after some pre-processing of the OCT images, points on the retinal layer boundaries in the first image are identified, and curve fitting is applied to them such that the layer boundaries can be represented by the coefficients of the curve equations. These coefficients then form the state space for the Kalman Filter. The filter then produces an optimal estimate of the current state of the system by updating its previous state using the measurements available in the form of a feedback control loop. The results show that the algorithm can be used to segment the retinal layers in OCT images. One of the limitations of the current algorithm is that the curve representation of the retinal layer boundary does not work well when the layer boundary is split into two, e.g., at the optic nerve, the layer boundary split into two. This maybe resolved by using a different approach to representing the boundaries, such as b-splines or level sets. The use of a Kalman filter shows promise to developing accurate and effective 3D OCT segmentation methods. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=optical%20coherence%20tomography" title="optical coherence tomography">optical coherence tomography</a>, <a href="https://publications.waset.org/abstracts/search?q=image%20segmentation" title=" image segmentation"> image segmentation</a>, <a href="https://publications.waset.org/abstracts/search?q=Kalman%20filter" title=" Kalman filter"> Kalman filter</a>, <a href="https://publications.waset.org/abstracts/search?q=object%20tracking" title=" object tracking"> object tracking</a> </p> <a href="https://publications.waset.org/abstracts/66524/segmenting-3d-optical-coherence-tomography-images-using-a-kalman-filter" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/66524.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">482</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">356</span> Analysis of Motor Nerve Conduction Velocity (MNCV) of Selected Nerves in Athletics</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jogbinder%20Singh%20Soodan">Jogbinder Singh Soodan</a>, <a href="https://publications.waset.org/abstracts/search?q=Ashok%20Kumar"> Ashok Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Gobind%20Singh"> Gobind Singh</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: This study aims to describe the motor nerve conduction velocity of selected nerves of both the upper and lower extremities in athletes. Thirty high-level sprinters (100 mts and 200 mts) and thirty high level distance runners (3000 mts) were volunteered to participate in the study. Method: Motor nerve conduction velocities (MNCV) of radial and sural nerves were recorded with the help of computerized equipment, NEUROPERFECT (MEDICAID SYSTEMS, India), with standard techniques of supramaximal percutaneus stimulation. The anthropometric measurements taken were body height (cms), age (yrs) and body weight (kgs). The neurophysiological parameters taken were MNCV of radial nerve (upper extremity) and sural nerve (lower extremity) of both sides (i.e. dominant and non-dominant) of the body. The room temperature was maintained at 37 degree Celsius. Results: Significant differences in motor nerve conduction velocities were found between dominant and non-dominant limbs in each group. The MNCV of radial nerve was obtained was significantly higher in the sprinters than long distance runners. The MNCV of sural nerve recorded was significantly higher in sprinters as compared to distance runners. Conclusion: The motor nerve conduction velocity of radial nerve was found to be higher in sprinters as compared to the distance runners and also, the MNCV for sural nerve was found to be higher in sprinters as compared to distance runners. In case of sprinters, the MNCV of radial and sural nerves were higher in dominant limbs (i.e. arms and legs) of both sides of the body. But, in case of distance runners, the MNCV of radial and sural nerves is higher in non dominant limbs. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=motor%20nerve%20conduction%20velocity" title="motor nerve conduction velocity">motor nerve conduction velocity</a>, <a href="https://publications.waset.org/abstracts/search?q=radial%20nerve" title=" radial nerve"> radial nerve</a>, <a href="https://publications.waset.org/abstracts/search?q=sural%20nerve" title=" sural nerve"> sural nerve</a>, <a href="https://publications.waset.org/abstracts/search?q=sprinters" title=" sprinters"> sprinters</a> </p> <a href="https://publications.waset.org/abstracts/10891/analysis-of-motor-nerve-conduction-velocity-mncv-of-selected-nerves-in-athletics" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/10891.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">564</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">355</span> Ulnar Nerve Changes Associated with Carpal Tunnel Syndrome and Effect on Median Ersus Ulnar Comparative Studies</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emmanuel%20K.%20Aziz%20Saba">Emmanuel K. Aziz Saba</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarah%20S.%20El-Tawab"> Sarah S. El-Tawab</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objectives: Carpal tunnel syndrome (CTS) was found to be associated with high pressure within the Guyon’s canal. The aim of this study was to assess the involvement of sensory and/or motor ulnar nerve fibers in patients with CTS and whether this affects the accuracy of the median versus ulnar sensory and motor comparative tests. Patients and methods: The present study included 145 CTS hands and 71 asymptomatic control hands. Clinical examination was done for all patients. The following tests were done for the patients and control: (1) Sensory conduction studies: median nerve, ulnar nerve, dorsal ulnar cutaneous nerve and median versus ulnar digit (D) four sensory comparative study; (2) Motor conduction studies: median nerve, ulnar nerve and median versus ulnar motor comparative study. Results: There were no statistically significant differences between patients and control group as regards parameters of ulnar motor study and dorsal ulnar cutaneous sensory conduction study. It was found that 17 CTS hands (11.7%) had ulnar sensory abnormalities in 17 different patients. The median versus ulnar sensory and motor comparative studies were abnormal among all these 17 CTS hands. There were statistically significant negative correlations between median motor latency and both ulnar sensory amplitudes recording D5 and D4. There were statistically significant positive correlations between median sensory conduction velocity and both ulnar sensory nerve action potential amplitude recording D5 and D4. Conclusions: There is ulnar sensory nerve abnormality among CTS patients. This abnormality affects the amplitude of ulnar sensory nerve action potential. The presence of abnormalities in ulnar nerve occurs in moderate and severe degrees of CTS. This does not affect the median versus ulnar sensory and motor comparative tests accuracy and validity for use in electrophysiological diagnosis of CTS. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=carpal%20tunnel%20syndrome" title="carpal tunnel syndrome">carpal tunnel syndrome</a>, <a href="https://publications.waset.org/abstracts/search?q=ulnar%20nerve" title=" ulnar nerve"> ulnar nerve</a>, <a href="https://publications.waset.org/abstracts/search?q=median%20nerve" title=" median nerve"> median nerve</a>, <a href="https://publications.waset.org/abstracts/search?q=median%20versus%20ulnar%20comparative%20study" title=" median versus ulnar comparative study"> median versus ulnar comparative study</a>, <a href="https://publications.waset.org/abstracts/search?q=dorsal%20ulnar%20cutaneous%20nerve" title=" dorsal ulnar cutaneous nerve"> dorsal ulnar cutaneous nerve</a> </p> <a href="https://publications.waset.org/abstracts/19196/ulnar-nerve-changes-associated-with-carpal-tunnel-syndrome-and-effect-on-median-ersus-ulnar-comparative-studies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19196.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">567</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">354</span> Ulnar Nerve Changes Associated with Carpal Tunnel Syndrome Not Affecting Median versus Ulnar Comparative Studies </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Emmanuel%20Kamal%20Aziz%20Saba">Emmanuel Kamal Aziz Saba</a>, <a href="https://publications.waset.org/abstracts/search?q=Sarah%20Sayed%20El-Tawab"> Sarah Sayed El-Tawab</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The present study was conducted to assess the involvement of ulnar sensory and/or motor nerve fibers in patients with carpal tunnel syndrome (CTS) and whether this affects the accuracy of the median versus ulnar comparative tests. The present study included 145 CTS hands and 71 asymptomatic control hands. Clinical examination was done. The following tests were done: Sensory conduction studies: median, ulnar and dorsal ulnar cutaneous nerves; and median versus ulnar digit (D) four sensory comparative study; and motor conduction studies: median nerve, ulnar nerve and median versus ulnar motor comparative study. It was found that 17 CTS hands (11.7%) had ulnar sensory abnormalities in 17 different patients. The median versus ulnar sensory and motor comparative studies were abnormal among all these 17 CTS hands. There were significant negative correlations between median motor latency and both ulnar sensory amplitudes recording D5 and D4. In conclusion, there is ulnar sensory nerve abnormality among CTS patients. This abnormality affects the amplitude of ulnar sensory nerve action potential. This does not affect the median versus ulnar sensory and motor comparative tests accuracy for use in CTS. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=median%20nerve" title="median nerve">median nerve</a>, <a href="https://publications.waset.org/abstracts/search?q=motor%20comparative%20study" title=" motor comparative study"> motor comparative study</a>, <a href="https://publications.waset.org/abstracts/search?q=sensory%20comparative%20study" title=" sensory comparative study"> sensory comparative study</a>, <a href="https://publications.waset.org/abstracts/search?q=ulnar%20nerve" title=" ulnar nerve"> ulnar nerve</a> </p> <a href="https://publications.waset.org/abstracts/32484/ulnar-nerve-changes-associated-with-carpal-tunnel-syndrome-not-affecting-median-versus-ulnar-comparative-studies" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/32484.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">429</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">353</span> Modeling of Radiofrequency Nerve Lesioning in Inhomogeneous Media</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Nour%20Ismail">Nour Ismail</a>, <a href="https://publications.waset.org/abstracts/search?q=Sahar%20El%20Kardawy"> Sahar El Kardawy</a>, <a href="https://publications.waset.org/abstracts/search?q=Bassant%20Badwy"> Bassant Badwy</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Radiofrequency (RF) lesioning of nerves have been commonly used to alleviate chronic pain, where RF current preventing transmission of pain signals through the nerve by heating the nerve causing the pain. There are some factors that affect the temperature distribution and the nerve lesion size, one of these factors is the inhomogeneities in the tissue medium. Our objective is to calculate the temperature distribution and the nerve lesion size in a nonhomogenous medium surrounding the RF electrode. A two 3-D finite element models are used to compare the temperature distribution in the homogeneous and nonhomogeneous medium. Also the effect of temperature-dependent electric conductivity on maximum temperature and lesion size is observed. Results show that the presence of a nonhomogeneous medium around the RF electrode has a valuable effect on the temperature distribution and lesion size. The dependency of electric conductivity on tissue temperature increased lesion size. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=finite%20element%20model" title="finite element model">finite element model</a>, <a href="https://publications.waset.org/abstracts/search?q=nerve%20lesioning" title=" nerve lesioning"> nerve lesioning</a>, <a href="https://publications.waset.org/abstracts/search?q=pain%20relief" title=" pain relief"> pain relief</a>, <a href="https://publications.waset.org/abstracts/search?q=radiofrequency%20lesion" title=" radiofrequency lesion"> radiofrequency lesion</a> </p> <a href="https://publications.waset.org/abstracts/1842/modeling-of-radiofrequency-nerve-lesioning-in-inhomogeneous-media" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/1842.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">416</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">352</span> Neuroprotection against N-Methyl-D-Aspartate-Induced Optic Nerve and Retinal Degeneration Changes by Philanthotoxin-343 to Alleviate Visual Impairments Involve Reduced Nitrosative Stress</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Izuddin%20Fahmy%20Abu">Izuddin Fahmy Abu</a>, <a href="https://publications.waset.org/abstracts/search?q=Mohamad%20Haiqal%20Nizar%20Mohamad"> Mohamad Haiqal Nizar Mohamad</a>, <a href="https://publications.waset.org/abstracts/search?q=Muhammad%20Fattah%20Fazel"> Muhammad Fattah Fazel</a>, <a href="https://publications.waset.org/abstracts/search?q=Renu%20Agarwal"> Renu Agarwal</a>, <a href="https://publications.waset.org/abstracts/search?q=Igor%20Iezhitsa"> Igor Iezhitsa</a>, <a href="https://publications.waset.org/abstracts/search?q=Nor%20Salmah%20Bakar"> Nor Salmah Bakar</a>, <a href="https://publications.waset.org/abstracts/search?q=Henrik%20%20Franzyk"> Henrik Franzyk</a>, <a href="https://publications.waset.org/abstracts/search?q=Ian%20Mellor"> Ian Mellor</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Glaucoma is the global leading cause of irreversible blindness. Currently, the available treatment strategy only involves lowering intraocular pressure (IOP); however, the condition often progresses despite lowered or normal IOP in some patients. N-methyl-D-aspartate receptor (NMDAR) excitotoxicity often occurs in neurodegeneration-related glaucoma; thus it is a relevant target to develop a therapy based on neuroprotection approach. This study investigated the effects of Philanthotoxin-343 (PhTX-343), an NMDAR antagonist, on the neuroprotection of NMDA-induced glaucoma to alleviate visual impairments. Male Sprague-Dawley rats were equally divided: Groups 1 (control) and 2 (glaucoma) were intravitreally injected with phosphate buffer saline (PBS) and NMDA (160nM), respectively, while group 3 was pre-treated with PhTX-343 (160nM) 24 hours prior to NMDA injection. Seven days post-treatments, rats were subjected to visual behavior assessments and subsequently euthanized to harvest their retina and optic nerve tissues for histological analysis and determination of nitrosative stress level using 3-nitrotyrosine ELISA. Visual behavior assessments via open field, object, and color recognition tests demonstrated poor visual performance in glaucoma rats indicated by high exploratory behavior. PhTX-343 pre-treatment appeared to preserve visual abilities as all test results were significantly improved (p < 0.05). H&E staining of the retina showed a marked reduction of ganglion cell layer thickness in the glaucoma group; in contrast, PhTX-343 significantly increased the number by 1.28-folds (p < 0.05). PhTX-343 also increased the number of cell nuclei/100μm2 within inner retina by 1.82-folds compared to the glaucoma group (p < 0.05). Toluidine blue staining of optic nerve tissues showed that PhTX-343 reduced the degeneration changes compared to the glaucoma group which exhibited vacuolation overall sections. PhTX-343 also decreased retinal 3- nitrotyrosine concentration by 1.74-folds compared to the glaucoma group (p < 0.05). All results in PhTX-343 group were comparable to control (p > 0.05). We conclude that PhTX-343 protects against NMDA-induced changes and visual impairments in the rat model by reducing nitrosative stress levels. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=excitotoxicity" title="excitotoxicity">excitotoxicity</a>, <a href="https://publications.waset.org/abstracts/search?q=glaucoma" title=" glaucoma"> glaucoma</a>, <a href="https://publications.waset.org/abstracts/search?q=nitrosative%20stress" title=" nitrosative stress "> nitrosative stress </a>, <a href="https://publications.waset.org/abstracts/search?q=NMDA%20receptor" title=" NMDA receptor "> NMDA receptor </a>, <a href="https://publications.waset.org/abstracts/search?q=N-methyl-D-aspartate" title=" N-methyl-D-aspartate "> N-methyl-D-aspartate </a>, <a href="https://publications.waset.org/abstracts/search?q=philanthotoxin" title=" philanthotoxin"> philanthotoxin</a>, <a href="https://publications.waset.org/abstracts/search?q=visual%20behaviour" title=" visual behaviour"> visual behaviour</a> </p> <a href="https://publications.waset.org/abstracts/120388/neuroprotection-against-n-methyl-d-aspartate-induced-optic-nerve-and-retinal-degeneration-changes-by-philanthotoxin-343-to-alleviate-visual-impairments-involve-reduced-nitrosative-stress" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/120388.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">137</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">351</span> Early Detection of Neuropathy in Leprosy-Comparing Clinical Tests with Nerve Conduction Study</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Suchana%20Marahatta">Suchana Marahatta</a>, <a href="https://publications.waset.org/abstracts/search?q=Sabina%20Bhattarai"> Sabina Bhattarai</a>, <a href="https://publications.waset.org/abstracts/search?q=Bishnu%20Hari%20Paudel"> Bishnu Hari Paudel</a>, <a href="https://publications.waset.org/abstracts/search?q=Dilip%20Thakur"> Dilip Thakur</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Background: Every year thousands of patients develop nerve damage and disabilities as a result of leprosy which can be prevented by early detection and treatment. So, early detection and treatment of nerve function impairment is of paramount importance in leprosy. Objectives: To assess the electrophysiological pattern of the peripheral nerves in leprosy patients and to compare it with clinical assessment tools. Materials and Methods: In this comparative cross-sectional study, 74 newly diagnosed leprosy patients without reaction were enrolled. They underwent thorough evaluation for peripheral nerve function impairment using clinical tests [i.e. nerve palpation (NP), monofilament (MF) testing, voluntary muscle testing (VMT)] and nerve conduction study (NCS). Clinical findings were compared with that of NCS using SPSS version 11.5. Results: NCS was impaired in 43.24% of leprosy patient at the baseline. Among them, sensory NCS was impaired in more patients (32.4%) in comparison to motor NCS (20.3%). NP, MF, and VMT were impaired in 58.1%, 25.7%, and 9.4% of the patients, respectively. Maximum concordance of monofilament testing and sensory NCS was found for sural nerve (14.7%). Likewise, the concordance of motor NP and motor NCS was the maximum for ulnar nerve (14.9%). When individual parameters of the NCS were considered, amplitude was found to be the most frequently affected parameter for both sensory and motor NCS. It was impaired in 100% of cases with abnormal NCS findings. Conclusion: Since there was no acceptable concordance between NCS findings and clinical findings, we should consider NCS whenever feasible for early detection of neuropathy in leprosy. The amplitude of both sensory nerve action potential (SNAP) and compound nerve action potential (CAMP) could be important determinants of the abnormal NCS if supported by further studies. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=leprosy" title="leprosy">leprosy</a>, <a href="https://publications.waset.org/abstracts/search?q=nerve%20function%20impairment" title=" nerve function impairment"> nerve function impairment</a>, <a href="https://publications.waset.org/abstracts/search?q=neuropathy" title=" neuropathy"> neuropathy</a>, <a href="https://publications.waset.org/abstracts/search?q=nerve%20conduction%20study" title=" nerve conduction study"> nerve conduction study</a> </p> <a href="https://publications.waset.org/abstracts/31963/early-detection-of-neuropathy-in-leprosy-comparing-clinical-tests-with-nerve-conduction-study" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/31963.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">318</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">350</span> Modalmetric Fiber Sensor and Its Applications</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=M.%20Zyczkowski">M. Zyczkowski</a>, <a href="https://publications.waset.org/abstracts/search?q=P.%20Markowski"> P. Markowski</a>, <a href="https://publications.waset.org/abstracts/search?q=M.%20Karol"> M. Karol</a> </p> <p class="card-text"><strong>Abstract:</strong></p> The team from IOE MUT is developing fiber optic sensors for the security systems for 15 years. The conclusions of the work indicate that these sensors are complicated. Moreover, these sensors are expensive to produce and require sophisticated signal processing methods.We present the results of the investigations of three different applications of the modalmetric sensor: • Protection of museum collections and heritage buildings, • Protection of fiber optic transmission lines, • Protection of objects of critical infrastructure. Each of the presented applications involves different requirements for the system. The results indicate that it is possible to developed a fiber optic sensor based on a single fiber. Modification of optoelectronic parts with a change of the length of the sensor and the method of reflections of propagating light at the end of the sensor allows to adjust the system to the specific application. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=modalmetric%20fiber%20optic%20sensor" title="modalmetric fiber optic sensor">modalmetric fiber optic sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=security%20sensor" title=" security sensor"> security sensor</a>, <a href="https://publications.waset.org/abstracts/search?q=optoelectronic%20parts" title=" optoelectronic parts"> optoelectronic parts</a>, <a href="https://publications.waset.org/abstracts/search?q=signal%20processing" title=" signal processing"> signal processing</a> </p> <a href="https://publications.waset.org/abstracts/9235/modalmetric-fiber-sensor-and-its-applications" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/9235.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">619</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">349</span> Management of Facial Nerve Palsy Following Physiotherapy </h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Bassam%20Band">Bassam Band</a>, <a href="https://publications.waset.org/abstracts/search?q=Simon%20Freeman"> Simon Freeman</a>, <a href="https://publications.waset.org/abstracts/search?q=Rohan%20Munir"> Rohan Munir</a>, <a href="https://publications.waset.org/abstracts/search?q=Hisham%20Band"> Hisham Band</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Objective: To determine efficacy of facial physiotherapy provided for patients with facial nerve palsy. Design: Retrospective study Subjects: 54 patients diagnosed with Facial nerve palsy were included in the study after they met the selection criteria including unilateral facial paralysis and start of therapy twelve months after the onset of facial nerve palsy. Interventions: Patients received the treatment offered at a facial physiotherapy clinic consisting of: Trophic electrical stimulation, surface electromyography with biofeedback, neuromuscular re-education and myofascial release. Main measures: The Sunnybrook facial grading scale was used to evaluate the severity of facial paralysis. Results: This study demonstrated the positive impact of physiotherapy for patient with facial nerve palsy with improvement of 24.2% on the Sunnybrook facial grading score from a mean baseline of 34.2% to 58.2%. The greatest improvement looking at different causes was seen in patient who had reconstructive surgery post Acoustic Neuroma at 31.3%. Conclusion: The therapy shows significant improvement for patients with facial nerve palsy even when started 12 months post onset of paralysis across different causes. This highlights the benefit of this non-invasive technique in managing facial nerve paralysis and possibly preventing the need for surgery. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=facial%20nerve%20palsy" title="facial nerve palsy">facial nerve palsy</a>, <a href="https://publications.waset.org/abstracts/search?q=treatment" title=" treatment"> treatment</a>, <a href="https://publications.waset.org/abstracts/search?q=physiotherapy" title=" physiotherapy"> physiotherapy</a>, <a href="https://publications.waset.org/abstracts/search?q=bells%20palsy" title=" bells palsy"> bells palsy</a>, <a href="https://publications.waset.org/abstracts/search?q=acoustic%20neuroma" title=" acoustic neuroma"> acoustic neuroma</a>, <a href="https://publications.waset.org/abstracts/search?q=ramsey-hunt%20syndrome" title=" ramsey-hunt syndrome"> ramsey-hunt syndrome</a> </p> <a href="https://publications.waset.org/abstracts/19940/management-of-facial-nerve-palsy-following-physiotherapy" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/19940.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">535</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">348</span> Attention Based Fully Convolutional Neural Network for Simultaneous Detection and Segmentation of Optic Disc in Retinal Fundus Images</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Sandip%20Sadhukhan">Sandip Sadhukhan</a>, <a href="https://publications.waset.org/abstracts/search?q=Arpita%20Sarkar"> Arpita Sarkar</a>, <a href="https://publications.waset.org/abstracts/search?q=Debprasad%20Sinha"> Debprasad Sinha</a>, <a href="https://publications.waset.org/abstracts/search?q=Goutam%20Kumar%20Ghorai"> Goutam Kumar Ghorai</a>, <a href="https://publications.waset.org/abstracts/search?q=Gautam%20Sarkar"> Gautam Sarkar</a>, <a href="https://publications.waset.org/abstracts/search?q=Ashis%20K.%20Dhara"> Ashis K. Dhara</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Accurate segmentation of the optic disc is very important for computer-aided diagnosis of several ocular diseases such as glaucoma, diabetic retinopathy, and hypertensive retinopathy. The paper presents an accurate and fast optic disc detection and segmentation method using an attention based fully convolutional network. The network is trained from scratch using the fundus images of extended MESSIDOR database and the trained model is used for segmentation of optic disc. The false positives are removed based on morphological operation and shape features. The result is evaluated using three-fold cross-validation on six public fundus image databases such as DIARETDB0, DIARETDB1, DRIVE, AV-INSPIRE, CHASE DB1 and MESSIDOR. The attention based fully convolutional network is robust and effective for detection and segmentation of optic disc in the images affected by diabetic retinopathy and it outperforms existing techniques. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=attention-based%20fully%20convolutional%20network" title="attention-based fully convolutional network">attention-based fully convolutional network</a>, <a href="https://publications.waset.org/abstracts/search?q=optic%20disc%20detection%20and%20segmentation" title=" optic disc detection and segmentation"> optic disc detection and segmentation</a>, <a href="https://publications.waset.org/abstracts/search?q=retinal%20fundus%20image" title=" retinal fundus image"> retinal fundus image</a>, <a href="https://publications.waset.org/abstracts/search?q=screening%20of%20ocular%20diseases" title=" screening of ocular diseases"> screening of ocular diseases</a> </p> <a href="https://publications.waset.org/abstracts/112293/attention-based-fully-convolutional-neural-network-for-simultaneous-detection-and-segmentation-of-optic-disc-in-retinal-fundus-images" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/112293.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">142</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">347</span> Multiple Variations of the Nerves of Gluteal Region and Their Clinical Implications, a Case Report</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=A.%20M.%20Prasad">A. M. Prasad</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Knowledge of variations of nerves of gluteal region is important for clinicians administering intramuscular injections, for orthopedic surgeons dealing with the hip surgeries, possibly for physiotherapists managing the painful conditions and paralysis of this region. Herein, we report multiple variations of the nerves of gluteal region. In the current case, the sciatic nerve was absent. The common peroneal and tibial nerves arose from sacral plexus and reached the gluteal region through greater sciatic foramen above and below piriformis respectively. The common peroneal nerve gave a muscular branch to the gluteus maximus. The inferior gluteal nerve and posterior cutaneous nerve of the thigh arose from a common trunk. The common trunk was formed by three roots. Upper and middle roots arose from sacral plexus and entered gluteal region through greater sciatic foramen respectively above and below piriformis. The lower root arose from the pudendal nerve and joined the common trunk. These variations were seen in the right gluteal region of an adult male cadaver aged approximately 70 years. Innervation of gluteus maximus by common peroneal nerve and presence of a common trunk of inferior gluteal nerve and posterior cutaneous nerve of the thigh make this case unique. The variant nerves may be subjected to iatrogenic injuries during surgical approach to the hip. They may also get compressed if there is a hypertrophy of the piriformis syndrome. Hence, the knowledge of these variations is of importance to clinicians, orthopedic surgeons and possibly for physiotherapists. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=gluteal%20region" title="gluteal region">gluteal region</a>, <a href="https://publications.waset.org/abstracts/search?q=multiple%20variations" title=" multiple variations"> multiple variations</a>, <a href="https://publications.waset.org/abstracts/search?q=nerve%20injury" title=" nerve injury"> nerve injury</a>, <a href="https://publications.waset.org/abstracts/search?q=sciatic%20nerve" title=" sciatic nerve"> sciatic nerve</a> </p> <a href="https://publications.waset.org/abstracts/30346/multiple-variations-of-the-nerves-of-gluteal-region-and-their-clinical-implications-a-case-report" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/30346.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">343</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">346</span> Traumatic Chiasmal Syndrome Following Traumatic Brain Injury</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Jiping%20Cai">Jiping Cai</a>, <a href="https://publications.waset.org/abstracts/search?q=Ningzhi%20Wangyang"> Ningzhi Wangyang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jun%20Shao"> Jun Shao</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Traumatic brain injury (TBI) is one of the major causes of morbidity and mortality that leads to structural and functional damage in several parts of the brain, such as cranial nerves, optic nerve tract or other circuitry involved in vision and occipital lobe, depending on its location and severity. As a result, the function associated with vision processing and perception are significantly affected and cause blurred vision, double vision, decreased peripheral vision and blindness. Here two cases complaining of monocular vision loss (actually temporal hemianopia) due to traumatic chiasmal syndrome after frontal head injury were reported, and were compared the findings with individual case reports published in the literature. Reported cases of traumatic chiasmal syndrome appear to share some common features, such as injury to the frontal bone and fracture of the anterior skull base. The degree of bitemporal hemianopia and visual loss acuity have a variable presentation and was not necessarily related to the severity of the craniocerebral trauma. Chiasmal injury may occur even in the absence bony chip impingement. Isolated bitemporal hemianopia is rare and clinical improvement usually may not occur. Mechanisms of damage to the optic chiasm after trauma include direct tearing, contusion haemorrhage and contusion necrosis, and secondary mechanisms such as cell death, inflammation, edema, neurogenesis impairment and axonal damage associated with TBI. Beside visual field test, MRI evaluation of optic pathways seems to the strong objective evidence to demonstrate the impairment of the integrity of visual systems following TBI. Therefore, traumatic chiasmal syndrome should be considered as a differential diagnosis by both neurosurgeons and ophthalmologists in patients presenting with visual impairment, especially bitemporal hemianopia after head injury causing frontal and anterior skull base fracture. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=bitemporal%20hemianopia" title="bitemporal hemianopia">bitemporal hemianopia</a>, <a href="https://publications.waset.org/abstracts/search?q=brain%20injury" title=" brain injury"> brain injury</a>, <a href="https://publications.waset.org/abstracts/search?q=optic%20chiasma" title=" optic chiasma"> optic chiasma</a>, <a href="https://publications.waset.org/abstracts/search?q=traumatic%20chiasmal%20syndrome." title=" traumatic chiasmal syndrome."> traumatic chiasmal syndrome.</a> </p> <a href="https://publications.waset.org/abstracts/166353/traumatic-chiasmal-syndrome-following-traumatic-brain-injury" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/166353.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">79</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">345</span> Advances in Fiber Optic Technology for High-Speed Data Transmission</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Salim%20Yusif">Salim Yusif</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Fiber optic technology has revolutionized telecommunications and data transmission, providing unmatched speed, bandwidth, and reliability. This paper presents the latest advancements in fiber optic technology, focusing on innovations in fiber materials, transmission techniques, and network architectures that enhance the performance of high-speed data transmission systems. Key advancements include the development of ultra-low-loss optical fibers, multi-core fibers, advanced modulation formats, and the integration of fiber optics into next-generation network architectures such as Software-Defined Networking (SDN) and Network Function Virtualization (NFV). Additionally, recent developments in fiber optic sensors are discussed, extending the utility of optical fibers beyond data transmission. Through comprehensive analysis and experimental validation, this research offers valuable insights into the future directions of fiber optic technology, highlighting its potential to drive innovation across various industries. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=fiber%20optics" title="fiber optics">fiber optics</a>, <a href="https://publications.waset.org/abstracts/search?q=high-speed%20data%20transmission" title=" high-speed data transmission"> high-speed data transmission</a>, <a href="https://publications.waset.org/abstracts/search?q=ultra-low-loss%20optical%20fibers" title=" ultra-low-loss optical fibers"> ultra-low-loss optical fibers</a>, <a href="https://publications.waset.org/abstracts/search?q=multi-core%20fibers" title=" multi-core fibers"> multi-core fibers</a>, <a href="https://publications.waset.org/abstracts/search?q=modulation%20formats" title=" modulation formats"> modulation formats</a>, <a href="https://publications.waset.org/abstracts/search?q=coherent%20detection" title=" coherent detection"> coherent detection</a>, <a href="https://publications.waset.org/abstracts/search?q=software-defined%20networking" title=" software-defined networking"> software-defined networking</a>, <a href="https://publications.waset.org/abstracts/search?q=network%20function%20virtualization" title=" network function virtualization"> network function virtualization</a>, <a href="https://publications.waset.org/abstracts/search?q=fiber%20optic%20sensors" title=" fiber optic sensors"> fiber optic sensors</a> </p> <a href="https://publications.waset.org/abstracts/187022/advances-in-fiber-optic-technology-for-high-speed-data-transmission" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/187022.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">61</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">344</span> Peripheral Nerves Cross-Sectional Area for the Diagnosis of Diabetic Polyneuropathy: A Meta-Analysis of Ultrasonographic Measurements</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Saeed%20Pourhassan">Saeed Pourhassan</a>, <a href="https://publications.waset.org/abstracts/search?q=Nastaran%20Maghbouli"> Nastaran Maghbouli</a> </p> <p class="card-text"><strong>Abstract:</strong></p> 1) Background It has been hypothesized that, in individuals with diabetes mellitus, the peripheral nerve is swollen due to sorbitol over-accumulation. Additionally growing evidence supported electro diagnostic study of diabetes induced neuropathy as a method having some challenges. 2) Objective To examine the performance of sonographic cross-sectional area (CSA) measurements in the diagnosis of diabetic polyneuropathy (DPN). 3) Data Sources Electronic databases, comprising PubMed and EMBASE and Google scholar, were searched for the appropriate studies before Jan 1, 2020. 4) Study Selection Eleven trials comparing different peripheral nerve CSA measurements between participants with and without DPN were included. 5) Data Extraction Study design, participants' demographic characteristics, diagnostic reference of DPN, and evaluated peripheral nerves and methods of CSA measurement. 6) Data Synthesis Among different peripheral nerves, Tibial nerve diagnostic odds ratios pooled from five studies (713 participants) were 4.46 (95% CI, 0.35–8.57) and the largest one with P<0.0001, I²:64%. Median nerve CSA at wrist and mid-arm took second and third place with ORs= 2.82 (1.50-4.15), 2.02(0.26-3.77) respectively. The sensitivities and specificities pooled from two studies for Sural nerve were 0.78 (95% CI, 0.68–0.89), and 0.68 (95% CI, 0.53–0.74). Included studies for other nerves were limited to one study. The largest sensitivity was for Sural nerve and the largest specificity was for Tibial nerve. 7) Conclusions The peripheral nerves CSA measured by ultrasound imaging is useful for the diagnosis of DPN and is most significantly different between patients and participants without DPN at the Tibial nerve. Because the Tibial nerve CSA in healthy participants, at various locations, rarely exceeds 24 mm2, this value can be considered as a cutoff point for diagnosing DPN. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=diabetes" title="diabetes">diabetes</a>, <a href="https://publications.waset.org/abstracts/search?q=diagnosis" title=" diagnosis"> diagnosis</a>, <a href="https://publications.waset.org/abstracts/search?q=polyneuropathy" title=" polyneuropathy"> polyneuropathy</a>, <a href="https://publications.waset.org/abstracts/search?q=ultrasound" title=" ultrasound"> ultrasound</a> </p> <a href="https://publications.waset.org/abstracts/124321/peripheral-nerves-cross-sectional-area-for-the-diagnosis-of-diabetic-polyneuropathy-a-meta-analysis-of-ultrasonographic-measurements" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/124321.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">135</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">343</span> Genetic Association of SIX6 Gene with Pathogenesis of Glaucoma</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Riffat%20Iqbal">Riffat Iqbal</a>, <a href="https://publications.waset.org/abstracts/search?q=Sidra%20Ihsan"> Sidra Ihsan</a>, <a href="https://publications.waset.org/abstracts/search?q=Andleeb%20Batool"> Andleeb Batool</a>, <a href="https://publications.waset.org/abstracts/search?q=Maryam%20Mukhtar"> Maryam Mukhtar</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Glaucoma is a gathering of optic neuropathies described by dynamic degeneration of retinal ganglionic cells. It is clinically and innately heterogenous illness containing a couple of particular forms each with various causes and severities. Primary open-angle glaucoma (POAG) is the most generally perceived kind of glaucoma. This study investigated the genetic association of single nucleotide polymorphisms (SNPs; rs10483727 and rs33912345) at the SIX1/SIX6 locus with primary open-angle glaucoma (POAG) in the Pakistani population. The SIX6 gene plays an important role in ocular development and has been associated with morphology of the optic nerve. A total of 100 patients clinically diagnosed with glaucoma and 100 control individuals of age over 40 were enrolled in the study. Genomic DNA was extracted by organic extraction method. The SNP genotyping was done by (i) PCR based restriction fragment length polymorphism (RFLP) and sequencing method. Significant genetic associations were observed for rs10483727 (risk allele T) and rs33912345 (risk allele C) with POAG. Hence, it was concluded that Six6 gene is genetically associated with pathogenesis of Glaucoma in Pakistan. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=genotyping" title="genotyping">genotyping</a>, <a href="https://publications.waset.org/abstracts/search?q=Pakistani%20population" title=" Pakistani population"> Pakistani population</a>, <a href="https://publications.waset.org/abstracts/search?q=primary%20open-angle%20glaucoma" title=" primary open-angle glaucoma"> primary open-angle glaucoma</a>, <a href="https://publications.waset.org/abstracts/search?q=SIX6%20gene" title=" SIX6 gene"> SIX6 gene</a> </p> <a href="https://publications.waset.org/abstracts/102183/genetic-association-of-six6-gene-with-pathogenesis-of-glaucoma" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/102183.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">184</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">342</span> Ophthalmic Hashing Based Supervision of Glaucoma and Corneal Disorders Imposed on Deep Graphical Model</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=P.%20S.%20Jagadeesh%20Kumar">P. S. Jagadeesh Kumar</a>, <a href="https://publications.waset.org/abstracts/search?q=Yang%20Yung"> Yang Yung</a>, <a href="https://publications.waset.org/abstracts/search?q=Mingmin%20Pan"> Mingmin Pan</a>, <a href="https://publications.waset.org/abstracts/search?q=Xianpei%20Li"> Xianpei Li</a>, <a href="https://publications.waset.org/abstracts/search?q=Wenli%20Hu"> Wenli Hu</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Glaucoma is impelled by optic nerve mutilation habitually represented as cupping and visual field injury frequently with an arcuate pattern of mid-peripheral loss, subordinate to retinal ganglion cell damage and death. Glaucoma is the second foremost cause of blindness and the chief cause of permanent blindness worldwide. Consequently, all-embracing study into the analysis and empathy of glaucoma is happening to escort deep learning based neural network intrusions to deliberate this substantial optic neuropathy. This paper advances an ophthalmic hashing based supervision of glaucoma and corneal disorders preeminent on deep graphical model. Ophthalmic hashing is a newly proposed method extending the efficacy of visual hash-coding to predict glaucoma corneal disorder matching, which is the faster than the existing methods. Deep graphical model is proficient of learning interior explications of corneal disorders in satisfactory time to solve hard combinatoric incongruities using deep Boltzmann machines. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=corneal%20disorders" title="corneal disorders">corneal disorders</a>, <a href="https://publications.waset.org/abstracts/search?q=deep%20Boltzmann%20machines" title=" deep Boltzmann machines"> deep Boltzmann machines</a>, <a href="https://publications.waset.org/abstracts/search?q=deep%20graphical%20model" title=" deep graphical model"> deep graphical model</a>, <a href="https://publications.waset.org/abstracts/search?q=glaucoma" title=" glaucoma"> glaucoma</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20networks" title=" neural networks"> neural networks</a>, <a href="https://publications.waset.org/abstracts/search?q=ophthalmic%20hashing" title=" ophthalmic hashing"> ophthalmic hashing</a> </p> <a href="https://publications.waset.org/abstracts/78678/ophthalmic-hashing-based-supervision-of-glaucoma-and-corneal-disorders-imposed-on-deep-graphical-model" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/78678.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">250</span> </span> </div> </div> <div class="card paper-listing mb-3 mt-3"> <h5 class="card-header" style="font-size:.9rem"><span class="badge badge-info">341</span> Development of 3D Printed, Conductive, Biodegradable Nerve Conduits for Neural Regeneration</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Wei-Chia%20Huang">Wei-Chia Huang</a>, <a href="https://publications.waset.org/abstracts/search?q=Jane%20Wang"> Jane Wang</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Damage to nerves is considered one of the most irreversible injuries. The regeneration of nerves has always been an important topic in regenerative medicine. In general, damage to human tissue will naturally repair overtime. However, when the nerves are damaged, healed flesh wound cannot guarantee full restoration to its original function, as truncated nerves are often irreversible. Therefore, the development of treatment methods to successfully guide and accelerate the regeneration of nerves has been highly sought after. In order to induce nerve tissue growth, nerve conduits are commonly used to help reconnect broken nerve bundles to provide protection to the location of the fracture while guiding the growth of the nerve bundles. To prevent the protected tissue from becoming necrotic and to ensure the growth rate, the conduits used are often modified with microstructures or blended with neuron growth factors that may facilitate nerve regeneration. Electrical stimulation is another attempted treatment for medical rehabilitation. With appropriate range of voltages and stimulation frequencies, it has been demonstrated to promote cell proliferation and migration. Biodegradability are critical for medical devices like nerve conduits, while conductive polymers pose great potential toward the differentiation and growth of nerve cells. In this work, biodegradability and conductivity were combined into a novel biodegradable, photocurable, conductive polymer composite materials by embedding conductive nanoparticles in poly(glycerol sebacate) acrylate (PGSA) and 3D-printed into nerve conduits. Rat pheochromocytoma cells and rat neuronal Schwann cells were chosen for the in vitro tests of the conduits and had demonstrate selective growth upon culture in the conductive conduits with built-in microchannels and electrical stimulation. <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=biodegradable%20polymer" title="biodegradable polymer">biodegradable polymer</a>, <a href="https://publications.waset.org/abstracts/search?q=3d%20printing" title=" 3d printing"> 3d printing</a>, <a href="https://publications.waset.org/abstracts/search?q=neural%20regeneration" title=" neural regeneration"> neural regeneration</a>, <a href="https://publications.waset.org/abstracts/search?q=electrical%20stimulation" title=" electrical stimulation"> electrical stimulation</a> </p> <a href="https://publications.waset.org/abstracts/170754/development-of-3d-printed-conductive-biodegradable-nerve-conduits-for-neural-regeneration" class="btn btn-primary btn-sm">Procedia</a> <a href="https://publications.waset.org/abstracts/170754.pdf" target="_blank" class="btn btn-primary btn-sm">PDF</a> <span class="bg-info text-light px-1 py-1 float-right rounded"> Downloads <span class="badge badge-light">104</span> </span> </div> </div> <ul class="pagination"> <li class="page-item disabled"><span class="page-link">&lsaquo;</span></li> <li class="page-item active"><span class="page-link">1</span></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=optic%20nerve&page=2">2</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=optic%20nerve&page=3">3</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=optic%20nerve&page=4">4</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=optic%20nerve&page=5">5</a></li> <li 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href="https://publications.waset.org/abstracts/search?q=optic%20nerve&page=13">13</a></li> <li class="page-item"><a class="page-link" href="https://publications.waset.org/abstracts/search?q=optic%20nerve&page=2" rel="next">&rsaquo;</a></li> </ul> </div> </main> <footer> <div id="infolinks" class="pt-3 pb-2"> <div class="container"> <div style="background-color:#f5f5f5;" class="p-3"> <div class="row"> <div class="col-md-2"> <ul class="list-unstyled"> About <li><a href="https://waset.org/page/support">About Us</a></li> <li><a href="https://waset.org/page/support#legal-information">Legal</a></li> <li><a target="_blank" rel="nofollow" href="https://publications.waset.org/static/files/WASET-16th-foundational-anniversary.pdf">WASET celebrates its 16th foundational anniversary</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Account <li><a href="https://waset.org/profile">My Account</a></li> </ul> </div> <div class="col-md-2"> <ul class="list-unstyled"> Explore <li><a 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