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.infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox ib-medical-condition"><tbody><tr><th colspan="2" class="infobox-above" style="background:#ccc">Convergence Insufficiency</th></tr><tr><th scope="row" class="infobox-label">Other names</th><td class="infobox-data">Convergence disorder</td></tr><tr><th scope="row" class="infobox-label"><a href="/wiki/Medical_specialty" title="Medical specialty">Specialty</a></th><td class="infobox-data"><a href="/wiki/Ophthalmology" title="Ophthalmology">Ophthalmology</a>, <a href="/wiki/Optometry" title="Optometry">optometry</a> <span class="penicon autoconfirmed-show"><span class="mw-valign-text-top" typeof="mw:File/Frameless"><a href="https://www.wikidata.org/wiki/Q5166383?uselang=en#P1995" title="Edit this on Wikidata"><img alt="Edit this on Wikidata" src="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/10px-OOjs_UI_icon_edit-ltr-progressive.svg.png" decoding="async" width="10" height="10" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/15px-OOjs_UI_icon_edit-ltr-progressive.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/8/8a/OOjs_UI_icon_edit-ltr-progressive.svg/20px-OOjs_UI_icon_edit-ltr-progressive.svg.png 2x" data-file-width="20" data-file-height="20" /></a></span></span></td></tr></tbody></table> <p><b>Convergence insufficiency</b> is a sensory and neuromuscular anomaly of the <a href="/wiki/Binocular_vision" title="Binocular vision">binocular vision</a> system, characterized by a reduced ability of the <a href="/wiki/Human_eyes" class="mw-redirect" title="Human eyes">eyes</a> to turn towards each other, or sustain <a href="/wiki/Convergence_(eye)" class="mw-redirect" title="Convergence (eye)">convergence</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Symptoms">Symptoms</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Convergence_insufficiency&action=edit&section=1" title="Edit section: Symptoms"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The symptoms and signs associated with convergence insufficiency are related to prolonged, visually demanding, near-centered tasks. They may include, but are not limited to, <a href="/wiki/Diplopia" title="Diplopia">diplopia</a> (double vision), <a href="/wiki/Asthenopia" class="mw-redirect" title="Asthenopia">asthenopia</a> (eye strain), transient blurred vision, difficulty sustaining near-visual function, abnormal fatigue, <a href="/wiki/Headache" title="Headache">headache</a>, and abnormal postural adaptation, among others. In some cases, difficulty with making eye contact have been noted as a complaint amongst those affected.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (October 2022)">citation needed</span></a></i>]</sup> Note that some Internet resources confuse convergence and divergence dysfunction, reversing them.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (October 2022)">citation needed</span></a></i>]</sup> </p> <div class="mw-heading mw-heading2"><h2 id="Diagnosis">Diagnosis</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Convergence_insufficiency&action=edit&section=2" title="Edit section: Diagnosis"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Diagnosis of convergence insufficiency is made by an eye care professional skilled in <a href="/wiki/Binocular_vision" title="Binocular vision">binocular vision</a> dysfunctions, such as an <a href="/wiki/Optometrist" class="mw-redirect" title="Optometrist">optometrist</a>, <a href="/wiki/Ophthalmologist" class="mw-redirect" title="Ophthalmologist">ophthalmologist</a>, or <a href="/wiki/Orthoptics" title="Orthoptics">orthoptist</a> to rule out any organic disease. Convergence insufficiency is characterized by one or more of the following diagnostic findings: patient symptoms, high <a href="/wiki/Exophoria" title="Exophoria">exophoria</a> at near, reduced <a href="/wiki/Accommodative_convergence" title="Accommodative convergence">accommodative convergence</a>/<a href="/wiki/Accommodation_(eye)" class="mw-redirect" title="Accommodation (eye)">accommodation</a> ratio, receded <a href="/wiki/Near_point_of_convergence" class="mw-redirect" title="Near point of convergence">near point of convergence</a>, and low <a href="/wiki/Fusional_vergence" title="Fusional vergence">fusional vergence</a> ranges and/or facility. Some patients with convergence insufficiency have concurrent accommodative insufficiency—accommodative amplitudes should therefore also be measured in symptomatic patients. </p><p>Convergence insufficiency can cause difficulty <a href="/wiki/Learning_to_read" class="mw-redirect" title="Learning to read">learning to read</a>.<sup id="cite_ref-:0_1-0" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:1_2-0" class="reference"><a href="#cite_note-:1-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:2_3-0" class="reference"><a href="#cite_note-:2-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Treatment">Treatment</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Convergence_insufficiency&action=edit&section=3" title="Edit section: Treatment"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Convergence insufficiency may be treated with convergence exercises prescribed by an eyecare specialist trained in orthoptics or binocular vision anomalies (see: <a href="/wiki/Vision_therapy" title="Vision therapy">vision therapy</a>). Some cases of convergence insufficiency are successfully managed by prescription of <a href="/wiki/Eyeglasses" class="mw-redirect" title="Eyeglasses">eyeglasses</a>, sometimes with therapeutic <a href="/wiki/Prism_(optics)" title="Prism (optics)">prisms</a>. </p><p>Pencil push-ups therapy is performed at home. The patient brings a pencil slowly to within 2–3 cm (0.79–1.18 in) of the eye just above the nose about fifteen minutes per day five times per week. Patients should record the closest distance that they could maintain fusion (keep the pencil from going double as long as possible) after each five minutes of therapy. Computer software may be used at home or in an orthoptist's/vision therapist's office to treat convergence insufficiency. A weekly 60-minute in-office therapy visit may be prescribed. This is generally accompanied with additional in-home therapy.<sup id="cite_ref-citt_4-0" class="reference"><a href="#cite_note-citt-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p><p>In 2005, the Convergence Insufficiency Treatment Trial (CITT) published two randomized clinical studies. The first, published in <i><a href="/wiki/Archives_of_Ophthalmology" class="mw-redirect" title="Archives of Ophthalmology">Archives of Ophthalmology</a></i>, demonstrated that computer exercises when combined with office/based vision therapy/orthoptics were more effective than "pencil pushups" or computer exercises alone for convergency insufficiency in nine- to eighteen-year-old children.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> The second found similar results for adults 19 to 30 years of age.<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> In a bibliographic review of 2010, the CITT confirmed their view that office-based accommodative/vergence therapy is the most effective treatment of convergence insufficiency, and that substituting it in entirety or in part with other eye training approaches such as home-based therapy may offer advantages in cost but not in outcome.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> A later study of 2012 confirmed that orthoptic exercises led to longstanding improvements of the <a href="/wiki/Asthenopia" class="mw-redirect" title="Asthenopia">asthenopic</a> symptoms of convergence sufficiency both in adults and in children.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> A 2020 <a href="/wiki/Cochrane_(organisation)" title="Cochrane (organisation)">Cochrane Review</a> concludes that office-based vergence/accommodative therapy with home reinforcement is more effective than home-based pencil/target push-ups or home-based computer vergence/accommodative therapy for children. In adults, evidence of the effectiveness of various non-surgical interventions is less clear.<sup id="cite_ref-Scheiman_9-0" class="reference"><a href="#cite_note-Scheiman-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p><p>Both positive fusional vergence (PFV)<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup> and negative fusional vergence (NFV)<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> can be trained, and vergence training should normally include both.<sup id="cite_ref-ScheimanWick2008_12-0" class="reference"><a href="#cite_note-ScheimanWick2008-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> Surgical correction options are also available, but the decision to proceed with surgery should be made with caution as convergence insufficiency generally does not improve with surgery. Bilateral <a href="/wiki/Medial_rectus_muscle" title="Medial rectus muscle">medial rectus</a> resection is the preferred type of surgery. However, the patient should be warned about the possibility of uncrossed diplopia at distance fixation after surgery. This typically resolves within one to three months postoperatively. The exophoria at near often recurs after several years, although most patients remain asymptomatic. </p> <div class="mw-heading mw-heading2"><h2 id="Reading_difficulty">Reading difficulty</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Convergence_insufficiency&action=edit&section=4" title="Edit section: Reading difficulty"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In some cases, convergence insufficiency can be the underlying cause of difficulty learning to read. As a result of the eyes not converging on the same point for sustained periods of time when reading, words can appear blurry or double because the brain is receiving two different images. Convergence insufficiency is not a learning disability. However, some children with the condition who are struggling to learn to read can be confused for having <a href="/wiki/Dyslexia" title="Dyslexia">dyslexia</a> due to difficulty learning to read. Children struggling with symptoms such as letters appearing blurry or double and experience tiredness or headaches when reading should consult an optometrist.<sup id="cite_ref-:0_1-1" class="reference"><a href="#cite_note-:0-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:2_3-1" class="reference"><a href="#cite_note-:2-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-:1_2-1" class="reference"><a href="#cite_note-:1-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Prevalence">Prevalence</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Convergence_insufficiency&action=edit&section=5" title="Edit section: Prevalence"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Among fifth and sixth grade children convergence insufficiency is 13%.<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> In studies that used standardized definitions of convergence insufficiency, investigators have reported a prevalence of 4.2–6% in school and clinic settings. The standard definition of convergence insufficiency is exophoria greater at near than at distance, a receded near point of convergence, and reduced convergence amplitudes at near.<sup id="cite_ref-citt_4-1" class="reference"><a href="#cite_note-citt-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Convergence_insufficiency&action=edit&section=6" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239009302">.mw-parser-output .portalbox{padding:0;margin:0.5em 0;display:table;box-sizing:border-box;max-width:175px;list-style:none}.mw-parser-output .portalborder{border:1px solid 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class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-:0-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-:0_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:0_1-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription 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.cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.mayoclinic.org/diseases-conditions/convergence-insufficiency/symptoms-causes/syc-20352735">"Convergence insufficiency - Symptoms and causes"</a>. <i>Mayo Clinic</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2022-05-26</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Mayo+Clinic&rft.atitle=Convergence+insufficiency+-+Symptoms+and+causes&rft_id=https%3A%2F%2Fwww.mayoclinic.org%2Fdiseases-conditions%2Fconvergence-insufficiency%2Fsymptoms-causes%2Fsyc-20352735&rfr_id=info%3Asid%2Fen.wikipedia.org%3AConvergence+insufficiency" class="Z3988"></span></span> </li> <li id="cite_note-:1-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-:1_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:1_2-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFdevora" class="citation web cs1">devora. <a rel="nofollow" class="external text" href="https://www.optometrists.org/vision-therapy/vision-therapy-for-children/convergence-insufficiency-2/does-convergence-insufficiency-impact-reading/">"Does Convergence Insufficiency Impact Reading?"</a>. <i>Optometrists.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2022-05-26</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Optometrists.org&rft.atitle=Does+Convergence+Insufficiency+Impact+Reading%3F&rft.au=devora&rft_id=https%3A%2F%2Fwww.optometrists.org%2Fvision-therapy%2Fvision-therapy-for-children%2Fconvergence-insufficiency-2%2Fdoes-convergence-insufficiency-impact-reading%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3AConvergence+insufficiency" class="Z3988"></span></span> </li> <li id="cite_note-:2-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-:2_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-:2_3-1"><sup><i><b>b</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.nei.nih.gov/learn-about-eye-health/eye-conditions-and-diseases/convergence-insufficiency">"Convergence Insufficiency | National Eye Institute"</a>. <i>www.nei.nih.gov</i><span class="reference-accessdate">. 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Lippincott Williams & Wilkins. p. 165. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/978-0-7817-7784-1" title="Special:BookSources/978-0-7817-7784-1"><bdi>978-0-7817-7784-1</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Clinical+Management+of+Binocular+Vision%3A+Heterophoric%2C+Accommodative%2C+and+Eye+Movement+Disorders&rft.pages=165&rft.pub=Lippincott+Williams+%26+Wilkins&rft.date=2008&rft.isbn=978-0-7817-7784-1&rft.au=Mitchell+Scheiman&rft.au=Bruce+Wick&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DjGGROHBFYt8C%26pg%3DPA165&rfr_id=info%3Asid%2Fen.wikipedia.org%3AConvergence+insufficiency" class="Z3988"></span></span> </li> <li id="cite_note-13"><span class="mw-cite-backlink"><b><a href="#cite_ref-13">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFDeshmukhMagdaleneDuttaChoudhury2017" class="citation journal cs1">Deshmukh, Saurabh; Magdalene, Damaris; Dutta, Pritam; Choudhury, Mitalee; Gupta, Krati (2017-07-01). <a rel="nofollow" class="external text" href="https://doi.org/10.4103%2Ftjosr.tjosr_36_17">"Clinical profile of nonstrabismic binocular vision anomalies in patients with asthenopia in North-East India"</a>. <i>TNOA Journal of Ophthalmic Science and Research</i>. <b>55</b> (3): 182. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.4103%2Ftjosr.tjosr_36_17">10.4103/tjosr.tjosr_36_17</a></span>. <a href="/wiki/S2CID_(identifier)" class="mw-redirect" title="S2CID (identifier)">S2CID</a> <a rel="nofollow" class="external text" href="https://api.semanticscholar.org/CorpusID:79967219">79967219</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=TNOA+Journal+of+Ophthalmic+Science+and+Research&rft.atitle=Clinical+profile+of+nonstrabismic+binocular+vision+anomalies+in+patients+with+asthenopia+in+North-East+India&rft.volume=55&rft.issue=3&rft.pages=182&rft.date=2017-07-01&rft_id=info%3Adoi%2F10.4103%2Ftjosr.tjosr_36_17&rft_id=https%3A%2F%2Fapi.semanticscholar.org%2FCorpusID%3A79967219%23id-name%3DS2CID&rft.aulast=Deshmukh&rft.aufirst=Saurabh&rft.au=Magdalene%2C+Damaris&rft.au=Dutta%2C+Pritam&rft.au=Choudhury%2C+Mitalee&rft.au=Gupta%2C+Krati&rft_id=https%3A%2F%2Fdoi.org%2F10.4103%252Ftjosr.tjosr_36_17&rfr_id=info%3Asid%2Fen.wikipedia.org%3AConvergence+insufficiency" class="Z3988"></span></span> </li> <li id="cite_note-14"><span class="mw-cite-backlink"><b><a href="#cite_ref-14">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFRouseBorstingHymanHussein1999" class="citation journal cs1">Rouse, Michael W.; Borsting, Eric; Hyman, Leslie; Hussein, Mohamed; Cotter, Susan A.; Flynn, Mary; Scheiman, Mitchell; Gallaway, Michael; De Land, Paul N. (September 1999). <span class="id-lock-subscription" title="Paid subscription required"><a rel="nofollow" class="external text" href="http://journals.lww.com/optvissci/Fulltext/1999/09000/Frequency_of_Convergence_Insufficiency_Among_Fifth.22.aspx">"Frequency of Convergence Insufficiency Among Fifth and Sixth Graders"</a></span>. <i>Optometry and Vision Science</i>. <b>76</b> (9): 643–649. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1097%2F00006324-199909000-00022">10.1097/00006324-199909000-00022</a>. <a href="/wiki/PMID_(identifier)" class="mw-redirect" title="PMID (identifier)">PMID</a> <a rel="nofollow" class="external text" href="https://pubmed.ncbi.nlm.nih.gov/10498006">10498006</a>.</cite><span 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style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Exophthalmos" title="Exophthalmos">Exophthalmos</a></li> <li><a href="/wiki/Enophthalmos" title="Enophthalmos">Enophthalmos</a></li> <li><a href="/wiki/Orbital_cellulitis" title="Orbital cellulitis">Orbital cellulitis</a></li> <li><a href="/wiki/Orbital_lymphoma" title="Orbital lymphoma">Orbital lymphoma</a></li> <li><a href="/wiki/Periorbital_cellulitis" title="Periorbital cellulitis">Periorbital cellulitis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Conjunctiva" title="Conjunctiva">Conjunctiva</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Chemosis" title="Chemosis">Chemosis</a></li> <li><a href="/wiki/Conjunctivitis" title="Conjunctivitis">Conjunctivitis</a> <ul><li><a href="/wiki/Allergic_conjunctivitis" title="Allergic conjunctivitis">allergic</a></li></ul></li> <li><a href="/wiki/Pterygium_(conjunctiva)" class="mw-redirect" title="Pterygium (conjunctiva)">Pterygium</a></li> <li><a href="/wiki/Pseudopterygium" title="Pseudopterygium">Pseudopterygium</a></li> <li><a href="/wiki/Pinguecula" title="Pinguecula">Pinguecula</a></li> <li><a href="/wiki/Subconjunctival_bleeding" title="Subconjunctival bleeding">Subconjunctival hemorrhage</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Globe" style="font-size:114%;margin:0 4em"><a href="/wiki/Globe_(human_eye)" title="Globe (human eye)">Globe</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Fibrous_tunic_of_eyeball" title="Fibrous tunic of eyeball">Fibrous tunic</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Sclera" title="Sclera">Sclera</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Scleritis" title="Scleritis">Scleritis</a></li> <li><a href="/wiki/Episcleritis" title="Episcleritis">Episcleritis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Cornea" title="Cornea">Cornea</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Keratitis" title="Keratitis">Keratitis</a> <ul><li><a href="/wiki/Herpetic_keratitis" class="mw-redirect" title="Herpetic keratitis">herpetic</a></li> <li><a href="/wiki/Acanthamoeba_keratitis" title="Acanthamoeba keratitis">acanthamoebic</a></li> <li><a href="/wiki/Fungal_keratitis" title="Fungal keratitis">fungal</a></li> <li><a href="/wiki/Exposure_keratitis" class="mw-redirect" title="Exposure keratitis">Exposure</a></li> <li><a href="/wiki/Photokeratitis" title="Photokeratitis">Photokeratitis</a></li></ul></li> <li><a href="/wiki/Corneal_ulcer" title="Corneal ulcer">Corneal ulcer</a></li> <li><a href="/wiki/Thygeson%27s_superficial_punctate_keratopathy" title="Thygeson's superficial punctate keratopathy">Thygeson's superficial punctate keratopathy</a></li> <li><a href="/wiki/Corneal_dystrophy" title="Corneal dystrophy">Corneal dystrophy</a> <ul><li><a href="/wiki/Fuchs%27_dystrophy" title="Fuchs' dystrophy">Fuchs'</a></li> <li><a href="/wiki/Meesmann_corneal_dystrophy" title="Meesmann corneal dystrophy">Meesmann</a></li></ul></li> <li><a href="/wiki/Corneal_ectatic_disorders" title="Corneal ectatic disorders">Corneal ectasia</a> <ul><li><a href="/wiki/Keratoconus" title="Keratoconus">Keratoconus</a></li> <li><a href="/wiki/Pellucid_marginal_degeneration" title="Pellucid marginal degeneration">Pellucid marginal degeneration</a></li> <li><a href="/wiki/Keratoglobus" title="Keratoglobus">Keratoglobus</a></li> <li><a href="/wiki/Terrien%27s_marginal_degeneration" title="Terrien's marginal degeneration">Terrien's marginal degeneration</a></li> <li><a href="/wiki/Post-LASIK_ectasia" title="Post-LASIK ectasia">Post-LASIK ectasia</a></li></ul></li> <li><a href="/wiki/Keratoconjunctivitis" title="Keratoconjunctivitis">Keratoconjunctivitis</a> <ul><li><a href="/wiki/Keratoconjunctivitis_sicca" class="mw-redirect" title="Keratoconjunctivitis sicca">sicca</a></li></ul></li> <li><a href="/wiki/Corneal_opacity" title="Corneal opacity">Corneal opacity</a></li> <li><a href="/wiki/Corneal_neovascularization" title="Corneal neovascularization">Corneal neovascularization</a></li> <li><a href="/wiki/Kayser%E2%80%93Fleischer_ring" title="Kayser–Fleischer ring">Kayser–Fleischer ring</a></li> <li><a href="/wiki/Haab%27s_striae" title="Haab's striae">Haab's striae</a></li> <li><a href="/wiki/Arcus_senilis" title="Arcus senilis">Arcus senilis</a></li> <li><a href="/wiki/Band_keratopathy" title="Band keratopathy">Band keratopathy</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Uvea" title="Uvea">Vascular tunic</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><div class="hlist"><ul><li><a href="/wiki/Iris_(anatomy)" title="Iris (anatomy)">Iris</a></li><li><a href="/wiki/Ciliary_body" title="Ciliary body">Ciliary body</a></li></ul></div></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Uveitis" title="Uveitis">Uveitis</a></li> <li><a href="/wiki/Intermediate_uveitis" title="Intermediate uveitis">Intermediate uveitis</a></li> <li><a href="/wiki/Hyphema" title="Hyphema">Hyphema</a></li> <li><a href="/wiki/Rubeosis_iridis" title="Rubeosis iridis">Rubeosis iridis</a></li> <li><a href="/wiki/Persistent_pupillary_membrane" title="Persistent pupillary membrane">Persistent pupillary membrane</a></li> <li><a href="/wiki/Iridodialysis" title="Iridodialysis">Iridodialysis</a></li> <li><a href="/wiki/Synechia_(eye)" title="Synechia (eye)">Synechia</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Choroid" title="Choroid">Choroid</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Choroideremia" title="Choroideremia">Choroideremia</a></li> <li><a href="/wiki/Choroiditis" class="mw-redirect" title="Choroiditis">Choroiditis</a> <ul><li><a href="/wiki/Chorioretinitis" title="Chorioretinitis">Chorioretinitis</a></li></ul></li> <li><a href="/wiki/Focal_choroidal_excavation" title="Focal choroidal excavation">Focal choroidal excavation</a></li> <li><a href="/wiki/Polypoidal_choroidal_vasculopathy" title="Polypoidal choroidal vasculopathy">Polypoidal choroidal vasculopathy</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Lens_(anatomy)" class="mw-redirect" title="Lens (anatomy)">Lens</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cataract" title="Cataract">Cataract</a> <ul><li><a href="/wiki/Congenital_cataract" title="Congenital cataract">Congenital cataract</a></li> <li><a href="/wiki/Childhood_cataract" title="Childhood cataract">Childhood cataract</a></li></ul></li> <li><a href="/wiki/Aphakia" title="Aphakia">Aphakia</a></li> <li><a href="/wiki/Ectopia_lentis" title="Ectopia lentis">Ectopia lentis</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Retinal_disease" class="mw-redirect" title="Retinal disease">Retina</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Retinitis" title="Retinitis">Retinitis</a> <ul><li><a href="/wiki/Chorioretinitis" title="Chorioretinitis">Chorioretinitis</a></li> <li><a href="/wiki/Cytomegalovirus_retinitis" title="Cytomegalovirus retinitis">Cytomegalovirus retinitis</a></li></ul></li> <li><a href="/wiki/Retinal_detachment" title="Retinal detachment">Retinal detachment</a> <ul><li><a href="/wiki/Posterior_vitreous_detachment" title="Posterior vitreous detachment">Posterior vitreous detachment</a></li></ul></li> <li><a href="/wiki/Retinoschisis" title="Retinoschisis">Retinoschisis</a></li> <li><a href="/wiki/Ocular_ischemic_syndrome" title="Ocular ischemic syndrome">Ocular ischemic syndrome</a> / <a href="/wiki/Central_retinal_vein_occlusion" title="Central retinal vein occlusion">Central retinal vein occlusion</a></li> <li><a href="/wiki/Central_retinal_artery_occlusion" title="Central retinal artery occlusion">Central retinal artery occlusion</a></li> <li><a href="/wiki/Branch_retinal_artery_occlusion" title="Branch retinal artery occlusion">Branch retinal artery occlusion</a></li> <li><a href="/wiki/Retinopathy" title="Retinopathy">Retinopathy</a> <ul><li><a href="/wiki/Diabetic_retinopathy" title="Diabetic retinopathy">diabetic</a></li> <li><a href="/wiki/Hypertensive_retinopathy" title="Hypertensive retinopathy">hypertensive</a></li> <li><a href="/wiki/Purtscher%27s_retinopathy" title="Purtscher's retinopathy">Purtscher's</a></li> <li><a href="/wiki/Retinopathy_of_prematurity" title="Retinopathy of prematurity">of prematurity</a></li> <li><a href="/wiki/Bietti%27s_crystalline_dystrophy" title="Bietti's crystalline dystrophy">Bietti's crystalline dystrophy</a></li> <li><a href="/wiki/Coats%27_disease" title="Coats' disease">Coats' disease</a></li> <li><a href="/wiki/Sickle_cell_retinopathy" title="Sickle cell retinopathy">Sickle cell</a></li> <li><a href="/wiki/Photic_retinopathy" title="Photic retinopathy">photic</a></li></ul></li> <li><a href="/wiki/Macular_degeneration" title="Macular degeneration">Macular degeneration</a></li> <li><a href="/wiki/Retinitis_pigmentosa" title="Retinitis pigmentosa">Retinitis pigmentosa</a></li> <li><a href="/wiki/Retinal_haemorrhage" title="Retinal haemorrhage">Retinal haemorrhage</a></li> <li><a href="/wiki/Central_serous_retinopathy" class="mw-redirect" title="Central serous retinopathy">Central serous retinopathy</a></li> <li><a href="/wiki/Macular_edema" title="Macular edema">Macular edema</a></li> <li><a href="/wiki/Epiretinal_membrane" title="Epiretinal membrane">Epiretinal membrane</a> (Macular pucker)</li> <li><a href="/wiki/Vitelliform_macular_dystrophy" title="Vitelliform macular dystrophy">Vitelliform macular dystrophy</a></li> <li><a href="/wiki/Leber%27s_congenital_amaurosis" class="mw-redirect" title="Leber's congenital amaurosis">Leber's congenital amaurosis</a></li> <li><a href="/wiki/Birdshot_chorioretinopathy" title="Birdshot chorioretinopathy">Birdshot chorioretinopathy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Glaucoma" title="Glaucoma">Glaucoma</a> / <a href="/wiki/Ocular_hypertension" title="Ocular hypertension">Ocular hypertension</a> / <a href="/wiki/Primary_juvenile_glaucoma" title="Primary juvenile glaucoma">Primary juvenile glaucoma</a></li> <li><a href="/wiki/Floater" title="Floater">Floater</a></li> <li><a href="/wiki/Leber%27s_hereditary_optic_neuropathy" title="Leber's hereditary optic neuropathy">Leber's hereditary optic neuropathy</a></li> <li><a href="/wiki/Ocular_hypotony" title="Ocular hypotony">Ocular hypotony</a></li> <li><a href="/wiki/Red_eye_(medicine)" title="Red eye (medicine)">Red eye</a></li> <li><a href="/wiki/Globe_rupture" title="Globe rupture">Globe rupture</a></li> <li><a href="/wiki/Fungal_keratitis" title="Fungal keratitis">Keratomycosis</a></li> <li><a href="/wiki/Phthisis_bulbi" title="Phthisis bulbi">Phthisis bulbi</a></li> <li><a href="/wiki/Persistent_fetal_vasculature" title="Persistent fetal vasculature">Persistent fetal vasculature</a></li> <li><a href="/wiki/Persistent_tunica_vasculosa_lentis" title="Persistent tunica vasculosa lentis">Persistent tunica vasculosa lentis</a></li> <li><a href="/wiki/Familial_exudative_vitreoretinopathy" title="Familial exudative vitreoretinopathy">Familial exudative vitreoretinopathy</a></li> <li><a href="/wiki/Vogt-Koyanagi-Harada_disease" class="mw-redirect" title="Vogt-Koyanagi-Harada disease">Vogt-Koyanagi-Harada disease</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Pathways" style="font-size:114%;margin:0 4em"><a href="/wiki/Visual_system" title="Visual system">Pathways</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Optic_nerve" title="Optic nerve">Optic nerve</a><br /><a href="/wiki/Optic_disc" title="Optic disc">Optic disc</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Optic_neuritis" title="Optic neuritis">Optic neuritis</a> <ul><li><a href="/wiki/Optic_papillitis" title="Optic papillitis">optic papillitis</a></li></ul></li> <li><a href="/wiki/Papilledema" title="Papilledema">Papilledema</a> <ul><li><a href="/wiki/Foster_Kennedy_syndrome" title="Foster Kennedy syndrome">Foster Kennedy syndrome</a></li></ul></li> <li><a href="/wiki/Optic_atrophy" class="mw-redirect" title="Optic atrophy">Optic atrophy</a></li> <li><a href="/wiki/Optic_disc_drusen" title="Optic disc drusen">Optic disc drusen</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Optic_neuropathy" title="Optic neuropathy">Optic neuropathy</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ischemic_optic_neuropathy" title="Ischemic optic neuropathy">Ischemic</a> <ul><li><a href="/wiki/Anterior_ischemic_optic_neuropathy" title="Anterior ischemic optic neuropathy">anterior (AION)</a></li> <li><a href="/wiki/Posterior_ischemic_optic_neuropathy" title="Posterior ischemic optic neuropathy">posterior (PION)</a></li> <li><a href="/wiki/Arteritic_anterior_ischemic_optic_neuropathy" title="Arteritic anterior ischemic optic neuropathy">arteritic anterior (AAION or arteritic AION)</a></li> <li><a href="/wiki/Non-arteritic_anterior_ischemic_optic_neuropathy" title="Non-arteritic anterior ischemic optic neuropathy">non-arteritic anterior (NAION)</a></li></ul></li> <li><a href="/wiki/Kjer%27s_optic_neuropathy" title="Kjer's optic neuropathy">Kjer's</a></li> <li><a href="/wiki/Leber%27s_hereditary_optic_neuropathy" title="Leber's hereditary optic neuropathy">Leber's hereditary</a></li> <li><a href="/wiki/Toxic_and_nutritional_optic_neuropathy" title="Toxic and nutritional optic neuropathy">Toxic and nutritional</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Strabismus" title="Strabismus">Strabismus</a><br /><a href="/wiki/Extraocular_muscles" title="Extraocular muscles">Extraocular muscles</a><br /><a href="/wiki/Binocular_vision" title="Binocular vision">Binocular vision</a><br /><a href="/wiki/Accommodation_(eye)" class="mw-redirect" title="Accommodation (eye)">Accommodation</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Paralytic_strabismus" scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Strabismus#Paralytic_strabismus" title="Strabismus">Paralytic strabismus</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ophthalmoparesis" title="Ophthalmoparesis">Ophthalmoparesis</a></li> <li><a href="/wiki/Chronic_progressive_external_ophthalmoplegia" title="Chronic progressive external ophthalmoplegia">Chronic progressive external ophthalmoplegia</a></li> <li><a href="/wiki/Kearns%E2%80%93Sayre_syndrome" title="Kearns–Sayre syndrome">Kearns–Sayre syndrome</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Cranial_nerve_disease" title="Cranial nerve disease">palsies</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Oculomotor_nerve_palsy" title="Oculomotor nerve palsy">Oculomotor (III)</a></li> <li><a href="/wiki/Fourth_nerve_palsy" title="Fourth nerve palsy">Fourth-nerve (IV)</a></li> <li><a href="/wiki/Sixth_nerve_palsy" title="Sixth nerve palsy">Sixth-nerve (VI)</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Strabismus#Other_strabismus" title="Strabismus">Other strabismus</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Esotropia" title="Esotropia">Esotropia</a> / <a href="/wiki/Exotropia" title="Exotropia">Exotropia</a></li> <li><a href="/wiki/Hypertropia" title="Hypertropia">Hypertropia</a></li> <li><a href="/wiki/Heterophoria" title="Heterophoria">Heterophoria</a> <ul><li><a href="/wiki/Esophoria" title="Esophoria">Esophoria</a></li> <li><a href="/wiki/Exophoria" title="Exophoria">Exophoria</a></li></ul></li> <li><a href="/wiki/Cyclotropia" title="Cyclotropia">Cyclotropia</a></li> <li><a href="/wiki/Brown%27s_syndrome" title="Brown's syndrome">Brown's syndrome</a></li> <li><a href="/wiki/Duane_syndrome" title="Duane syndrome">Duane syndrome</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other binocular</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Conjugate_gaze_palsy" title="Conjugate gaze palsy">Conjugate gaze palsy</a></li> <li><a class="mw-selflink selflink">Convergence insufficiency</a></li> <li><a href="/wiki/Internuclear_ophthalmoplegia" title="Internuclear ophthalmoplegia">Internuclear ophthalmoplegia</a></li> <li><a href="/wiki/One_and_a_half_syndrome" title="One and a half syndrome">One and a half syndrome</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Refraction" title="Refraction">Refraction</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Refractive_error" title="Refractive error">Refractive error</a> <ul><li><a href="/wiki/Far-sightedness" class="mw-redirect" title="Far-sightedness">Hyperopia</a></li> <li><a href="/wiki/Near-sightedness" class="mw-redirect" title="Near-sightedness">Myopia</a></li></ul></li> <li><a href="/wiki/Astigmatism" title="Astigmatism">Astigmatism</a></li> <li><a href="/wiki/Anisometropia" title="Anisometropia">Anisometropia</a> / <a href="/wiki/Aniseikonia" title="Aniseikonia">Aniseikonia</a></li> <li><a href="/wiki/Presbyopia" title="Presbyopia">Presbyopia</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Vision_disorder" title="Vision disorder">Vision disorders</a><br /><a href="/wiki/Blindness" class="mw-redirect" title="Blindness">Blindness</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Amblyopia" title="Amblyopia">Amblyopia</a></li> <li><a href="/wiki/Leber%27s_congenital_amaurosis" class="mw-redirect" title="Leber's congenital amaurosis">Leber's congenital amaurosis</a></li> <li><a href="/wiki/Diplopia" title="Diplopia">Diplopia</a></li> <li><a href="/wiki/Scotoma" title="Scotoma">Scotoma</a></li> <li><a href="/wiki/Color_blindness" title="Color blindness">Color blindness</a> <ul><li><a href="/wiki/Achromatopsia" title="Achromatopsia">Achromatopsia</a></li> <li><a href="/wiki/Dichromacy" title="Dichromacy">Dichromacy</a></li> <li><a href="/wiki/Monochromacy" title="Monochromacy">Monochromacy</a></li></ul></li> <li><a href="/wiki/Nyctalopia" title="Nyctalopia">Nyctalopia</a> <ul><li><a href="/wiki/Oguchi_disease" title="Oguchi disease">Oguchi disease</a></li></ul></li> <li><a href="/wiki/Blindness" class="mw-redirect" title="Blindness">Blindness</a> / <a href="/wiki/Vision_loss" class="mw-redirect" title="Vision loss">Vision loss</a> / <a href="/wiki/Visual_impairment" title="Visual impairment">Visual impairment</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Anopsia" title="Anopsia">Anopsia</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Hemianopsia" title="Hemianopsia">Hemianopsia</a> <ul><li><a href="/wiki/Binasal_hemianopsia" title="Binasal hemianopsia">binasal</a></li> <li><a href="/wiki/Bitemporal_hemianopsia" title="Bitemporal hemianopsia">bitemporal</a></li> <li><a href="/wiki/Homonymous_hemianopsia" title="Homonymous hemianopsia">homonymous</a></li></ul></li> <li><a href="/wiki/Quadrantanopia" title="Quadrantanopia">Quadrantanopia</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">subjective</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Asthenopia" class="mw-redirect" title="Asthenopia">Asthenopia</a></li> <li><a href="/wiki/Hemeralopia" title="Hemeralopia">Hemeralopia</a></li> <li><a href="/wiki/Photophobia" title="Photophobia">Photophobia</a></li> <li><a href="/wiki/Scintillating_scotoma" title="Scintillating scotoma">Scintillating scotoma</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Pupil" title="Pupil">Pupil</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Anisocoria" title="Anisocoria">Anisocoria</a></li> <li><a href="/wiki/Argyll_Robertson_pupil" title="Argyll Robertson pupil">Argyll Robertson pupil</a></li> <li><a href="/wiki/Marcus_Gunn_pupil" class="mw-redirect" title="Marcus Gunn pupil">Marcus Gunn pupil</a></li> <li><a href="/wiki/Adie_syndrome" title="Adie syndrome">Adie syndrome</a></li> <li><a href="/wiki/Miosis" title="Miosis">Miosis</a></li> <li><a href="/wiki/Mydriasis" title="Mydriasis">Mydriasis</a></li> <li><a href="/wiki/Cycloplegia" title="Cycloplegia">Cycloplegia</a></li> <li><a href="/wiki/Parinaud%27s_syndrome" title="Parinaud's syndrome">Parinaud's syndrome</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Nystagmus" title="Nystagmus">Nystagmus</a></li> <li><a href="/wiki/Childhood_blindness" title="Childhood blindness">Childhood blindness</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks mw-collapsible mw-collapsed navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><div id="Infections" style="font-size:114%;margin:0 4em"><a href="/wiki/Eye_disease" title="Eye disease">Infections</a></div></th></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Trachoma" title="Trachoma">Trachoma</a></li> <li><a href="/wiki/Onchocerciasis" title="Onchocerciasis">Onchocerciasis</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Stereoscopy_and_3D_display" style="padding:3px"><table class="nowraplinks mw-collapsible mw-collapsed navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Stereoscopy" title="Template:Stereoscopy"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Stereoscopy" title="Template talk:Stereoscopy"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Stereoscopy" title="Special:EditPage/Template:Stereoscopy"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Stereoscopy_and_3D_display" style="font-size:114%;margin:0 4em"><a href="/wiki/Stereoscopy" title="Stereoscopy">Stereoscopy</a> and <a href="/wiki/3D_display" title="3D display">3D display</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Perception</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3D_stereo_view" title="3D stereo view">3D stereo view</a></li> <li><a href="/wiki/Binocular_rivalry" title="Binocular rivalry">Binocular rivalry</a></li> <li><a href="/wiki/Binocular_vision" title="Binocular vision">Binocular vision</a></li> <li><a href="/wiki/Chromostereopsis" title="Chromostereopsis">Chromostereopsis</a></li> <li><a class="mw-selflink selflink">Convergence insufficiency</a></li> <li><a href="/wiki/Correspondence_problem" title="Correspondence problem">Correspondence problem</a></li> <li><a href="/wiki/Peripheral_vision" title="Peripheral vision">Peripheral vision</a></li> <li><a href="/wiki/Depth_perception" title="Depth perception">Depth perception</a></li> <li><a href="/wiki/Epipolar_geometry" title="Epipolar geometry">Epipolar geometry</a></li> <li><a href="/wiki/Kinetic_depth_effect" title="Kinetic depth effect">Kinetic depth effect</a></li> <li><a href="/wiki/Stereoblindness" title="Stereoblindness">Stereoblindness</a></li> <li><a href="/wiki/Stereopsis" title="Stereopsis">Stereopsis</a></li> <li><a href="/wiki/Stereopsis_recovery" title="Stereopsis recovery">Stereopsis recovery</a></li> <li><a href="/wiki/Stereoscopic_acuity" title="Stereoscopic acuity">Stereoscopic acuity</a></li> <li><a href="/wiki/Vergence-accommodation_conflict" title="Vergence-accommodation conflict">Vergence-accommodation conflict</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Display<br />technologies</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Active_shutter_3D_system" title="Active shutter 3D system">Active shutter 3D system</a></li> <li><a href="/wiki/Anaglyph_3D" title="Anaglyph 3D">Anaglyph 3D</a></li> <li><a href="/wiki/Autostereogram" title="Autostereogram">Autostereogram</a></li> <li><a href="/wiki/Autostereoscopy" title="Autostereoscopy">Autostereoscopy</a></li> <li><a href="/wiki/Bubblegram" title="Bubblegram">Bubblegram</a></li> <li><a href="/wiki/Head-mounted_display" title="Head-mounted display">Head-mounted display</a></li> <li><a href="/wiki/Holography" title="Holography">Holography</a></li> <li><a href="/wiki/Integral_imaging" title="Integral imaging">Integral imaging</a></li> <li><a href="/wiki/Lenticular_lens" title="Lenticular lens">Lenticular lens</a></li> <li><a href="/wiki/Multiscopy" title="Multiscopy">Multiscopy</a></li> <li><a href="/wiki/Parallax_barrier" title="Parallax barrier">Parallax barrier</a></li> <li><a href="/wiki/Parallax_scrolling" title="Parallax scrolling">Parallax scrolling</a></li> <li><a href="/wiki/Polarized_3D_system" title="Polarized 3D system">Polarized 3D system</a></li> <li><a href="/wiki/Specular_holography" title="Specular holography">Specular holography</a></li> <li><a href="/wiki/3D_display" title="3D display">Stereo display</a></li> <li><a href="/wiki/Stereoscope" title="Stereoscope">Stereoscope</a></li> <li><a href="/wiki/Vectograph" title="Vectograph">Vectograph</a></li> <li><a href="/wiki/Virtual_retinal_display" title="Virtual retinal display">Virtual retinal display</a></li> <li><a href="/wiki/Volumetric_display" title="Volumetric display">Volumetric display</a></li> <li><a href="/wiki/Wiggle_stereoscopy" title="Wiggle stereoscopy">Wiggle stereoscopy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other<br />technologies</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/2D_to_3D_conversion" title="2D to 3D conversion">2D to 3D conversion</a></li> <li><a href="/wiki/2D_plus_Delta" title="2D plus Delta">2D plus Delta</a></li> <li><a href="/wiki/2D-plus-depth" title="2D-plus-depth">2D-plus-depth</a></li> <li><a href="/wiki/Computer_stereo_vision" title="Computer stereo vision">Computer stereo vision</a></li> <li><a href="/wiki/Multiview_Video_Coding" title="Multiview Video Coding">Multiview Video Coding</a></li> <li><a href="/wiki/Parallax_scanning" title="Parallax scanning">Parallax scanning</a></li> <li><a href="/wiki/Pseudoscope" title="Pseudoscope">Pseudoscope</a></li> <li><a href="/wiki/Stereo_photography_techniques" title="Stereo photography techniques">Stereo photography techniques</a></li> <li><a href="/wiki/Stereoautograph" title="Stereoautograph">Stereoautograph</a></li> <li><a href="/wiki/Stereoscopic_depth_rendition" title="Stereoscopic depth rendition">Stereoscopic depth rendition</a></li> <li><a href="/wiki/Stereoscopic_rangefinder" title="Stereoscopic rangefinder">Stereoscopic rangefinder</a></li> <li><a href="/wiki/Stereoscopic_spectroscopy" title="Stereoscopic spectroscopy">Stereoscopic spectroscopy</a></li> <li><a href="/wiki/Stereoscopic_video_coding" title="Stereoscopic video coding">Stereoscopic video coding</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Product<br />types</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3D_camcorder" title="3D camcorder">3D camcorder</a></li> <li><a href="/wiki/3D_film" title="3D film">3D film</a></li> <li><a href="/wiki/3D_television" title="3D television">3D television</a></li> <li><a href="/wiki/List_of_3D-enabled_mobile_phones" title="List of 3D-enabled mobile phones">3D-enabled mobile phones</a></li> <li><a href="/wiki/4D_film" title="4D film">4D film</a></li> <li><a href="/wiki/Blu-ray_3D" class="mw-redirect" title="Blu-ray 3D">Blu-ray 3D</a></li> <li><a href="/wiki/Digital_3D" title="Digital 3D">Digital 3D</a></li> <li><a href="/wiki/Stereo_camera" title="Stereo camera">Stereo camera</a></li> <li><a href="/wiki/Stereo_microscope" title="Stereo microscope">Stereo microscope</a></li> <li><a href="/wiki/Stereoscopic_video_game" title="Stereoscopic video game">Stereoscopic video game</a></li> <li><a href="/wiki/Virtual_reality_headset" title="Virtual reality headset">Virtual reality headset</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Notable<br />products</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/AMD_HD3D" title="AMD HD3D">AMD HD3D</a></li> <li><a href="/wiki/Dolby_3D" title="Dolby 3D">Dolby 3D</a></li> <li><a href="/wiki/Fujifilm_FinePix_Real_3D" title="Fujifilm FinePix Real 3D">Fujifilm FinePix Real 3D</a></li> <li><a href="/wiki/Infitec" title="Infitec">Infitec</a></li> <li><a href="/wiki/MasterImage_3D" title="MasterImage 3D">MasterImage 3D</a></li> <li><a href="/wiki/Nintendo_3DS" title="Nintendo 3DS">Nintendo 3DS</a> <ul><li><a href="/wiki/New_Nintendo_3DS" title="New Nintendo 3DS">New 3DS</a></li></ul></li> <li><a href="/wiki/Nvidia_3D_Vision" title="Nvidia 3D Vision">Nvidia 3D Vision</a></li> <li><a href="/wiki/Panavision_3D" class="mw-redirect" title="Panavision 3D">Panavision 3D</a></li> <li><a href="/wiki/RealD_3D" title="RealD 3D">RealD 3D</a></li> <li><a href="/wiki/Sharp_Actius_RD3D_Notebook" class="mw-redirect" title="Sharp Actius RD3D Notebook">Sharp Actius RD3D</a></li> <li><a href="/wiki/View-Master" title="View-Master">View-Master</a></li> <li><a href="/wiki/XpanD_3D" class="mw-redirect" title="XpanD 3D">XpanD 3D</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Miscellany</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Stereographer" title="Stereographer">Stereographer</a></li> <li><a href="/wiki/Stereoscopic_Displays_and_Applications" title="Stereoscopic Displays and Applications">Stereoscopic Displays and Applications</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img 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