CINXE.COM

<!DOCTYPE html><html lang="en-US"><head><title>Just a moment...</title><meta http-equiv="Content-Type" content="text/html; charset=UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=Edge"><meta name="robots" content="noindex,nofollow"><meta name="viewport" content="width=device-width,initial-scale=1"><style>*{box-sizing:border-box;margin:0;padding:0}html{line-height:1.15;-webkit-text-size-adjust:100%;color:#313131;font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,Noto Sans,sans-serif,Apple Color Emoji,Segoe UI Emoji,Segoe UI Symbol,Noto Color Emoji}body{display:flex;flex-direction:column;height:100vh;min-height:100vh}.main-content{margin:8rem auto;max-width:60rem;padding-left:1.5rem}@media (width <= 720px){.main-content{margin-top:4rem}}.h2{font-size:1.5rem;font-weight:500;line-height:2.25rem}@media (width <= 720px){.h2{font-size:1.25rem;line-height:1.5rem}}#challenge-error-text{background-image:url(data:image/svg+xml;base64,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);background-repeat:no-repeat;background-size:contain;padding-left:34px}@media (prefers-color-scheme:dark){body{background-color:#222;color:#d9d9d9}}</style><meta http-equiv="refresh" content="120"></head><body class="no-js"><div class="main-wrapper" role="main"><div class="main-content"><noscript><div class="h2"><span id="challenge-error-text">Enable JavaScript and cookies to continue</span></div></noscript></div></div><script>(function(){window._cf_chl_opt={cvId: '3',cZone: "waset.org",cType: 'non-interactive',cRay: '9135115bbea53f4b',cH: 'PKIVwbMs4VNs2FQqaQmN6HizTP42GSviZjAn6qguz8g-1739787867-1.2.1.1-NFUb2kRdSIr38pWL4EV2ypahoTcbj9zrwJAdp3EkpMfHJt.sBmEDRDLdNzBX6rwi',cUPMDTk: "\/ophthalmology-and-optometry-conference-in-december-2025-in-istanbul?__cf_chl_tk=Ggb55ag8Ub55XEAG28mnSrcixXmYiBw9gR.bo9wct9I-1739787867-1.0.1.1-VgHYh6sXA4Ol0B1CzKcrvffsXref1NxixezOQ2mfZKU",cFPWv: 'b',cITimeS: '1739787867',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/ophthalmology-and-optometry-conference-in-december-2025-in-istanbul?__cf_chl_f_tk=Ggb55ag8Ub55XEAG28mnSrcixXmYiBw9gR.bo9wct9I-1739787867-1.0.1.1-VgHYh6sXA4Ol0B1CzKcrvffsXref1NxixezOQ2mfZKU",md: "x1y8vEAWe6_yNP3Zpc3H4Uv9Zo5IEo2t8ix1BuvcBew-1739787867-1.2.1.1-NIbfzSM0soWHp6LLeytwIBb4kaFQ_DLF5h980UA0m4SVZ3hhJ32lr4wPJoBUpfb5Qr5YwceSkZ2AQfuDcaqDnmSqowfePgX8I5hpZ2_RI.CAr1Ku98gmW7nvGqBHecNnL_v4A7vILY_FOA_rRMDmreuUzZYOl5PnthkNcE9hFyp5Nzk8cNkatER2xnfy7TqUlpqXCHqVY.AbtJz.V9EdpUABOTsx6nKGoc4n.tLa2LqfTWMpRSABZ6g4wRjniDR95xcNnDG6XmYA0rhaoMA7O75.mMb3EDeN.Hls8ft9sPIYLah4RpCnKplTyypXc2g_nnIcnXThR3A5dlk5AtcHPoueVPCMEPOgEfNY1U2LkC5VmDCEN2hkVG3pcJzdnzgOwy8Rty0git6IpCZxDrijUylTzMQZy1dIlAMOhGXaD_ERK5IHQLyQQK4XBbnMXZ6GoPHLTh2CqoQiU.7o03D9Rat4LiCIFS3.4yIKdRou5s1bJgaEW95k3A29vKumM5jw3iEUUMgBVi0U4QlOkx18aI36aLnF4I1ABkymXEMoXcDtGBXmAb1tPfVw3wJLHrMPDePvXAMrELyqYvy6axeVzhxZ19KZDM4m_MNZqzRcbmXfZZaVtK8O6OCFCilPFKrYTrXzAV54u0g4nubAicWOI__SOnTWhr.MIrStrKtT4XqOcw9MnGAiyn9p4IWi_RJXaNzGyOaotxF13dICISRX_sr_hSgyZuF8hJI5Rvh6HwFhFiN757CX4U4oaxqCJo9CXmuMDegPZvJg3ll94thGP.1lM9iDpxH8ZAaRfQtGuVErUzoKz3a.W_LWXIDvMHg88KcXREx6fHoBGxyNDI4fUvb3qRk7gpzQDr2ilL3QpseJrw8gweAW0OEjqUWQvhSstelMfnVLrENOTw2QUbAWJbFbYiysT.PdjT7QfJRELvEM_dKmrgy_oVR6k433CJRdlB5K5CH2t9bN1rqHWziVl_KYiyFAhJjBUVDFSJq09.1_kBHZbClGVpnzIPpiwYENS_vbNj4oisXEit.j3hdER_YpqZ6gaAGhGiuEn_OJg8U9zhIHIs061M.7sGRIzJ7wWe1FUAljr.BZckkjo6seVMB4a44iVHd56MfH0jYbx9pMFAcAhL6jhn7Yhr0CWOiD9x8DsPOvDIi0RjxwtGYgdtTZIBQn2vrs9_Aguv7XukloWiDH8lQz67ZnSvr2xJlv5L5SX1TWRdekbSIgUxdPbHc_Dw7.EWpBpKYkj3sHcN6VvCkC.o2ebFULrtvSloFYz5zBWkk1i.hdntoOyYA5.ug153sDK.zLID0VaKpzI0VeRpT4YqQLPEwcosrMvxzwPl9ZjkC9JBy4yHZfozhp4Jk4fbKYOZi3XWgbGeXu_JADO3npcTzCvYGsqyGMMZH4rwkT_rEOKcPmVIGJDQxjI8o67ICUsYNmFEpJMSFVeGOoVwAae337bQska6AZTmR7ZhD8T3RFjmfuCcxLPCKop4vpr6D5yNI_vV6C4n9mPJyEkdpOx483HyDcQS1BBOClpf0LoCrgmbUsyFxE4p4nrcHqcCL0SOD051SaLnBn5EASp2j0Oosg5S1lkevseB9L6tfnD.Fqz.w09XRjXbURKUxrcJS7fXAZ9H03ApyJvrSLxFEmd2OMaof0TJkbija4YFdp2mXf5N4AI9HMj_GyLtIUG0u0xgEdebzHBUGbMRUIEgNxv8Ogq2tSN8W0CCRWkMqTlsvbIefbhRS9SuQ4DfFGeDKFTNQEFSZ0189qnnEHV_4Z2NexudkhCIgqTW_VYHG8OwcTJ7czzgxWUrRs.Q2rPHuteMy9cycpgpAYoXRrLfhHVSX_9RbG_f.I8nIRp3Fa8ln.YosNvBI6s_mA3fshAz1YZYi_6YcCU1YDC_CG3MiqPgKavj22ou2h50ZbCiYj0lCiePuU8gGohmoKXhj.xN5jcdOcND7v1EbDvebqN7_Be6c5TNIgJJGKuLKaoRITDLeiIc3whF1F.0wqS49pZgBlYaiTcrZjf8pcZX8",mdrd: "mpZJ9uzxv1cdInkGskI39rZexs2thpi7PZIaP9mHza4-1739787867-1.2.1.1-zz8KJ59kP1GAz6YPzwgSsOo0LvlJVG0029cNc2c5R4c.NuqAfxPLIw0wBD.PpjtVh458hYRUBqrOY2b4jZTfXJkbm.CU9cGJkS8jH9tQ3HG3.epI4vI7OwSL647vejL69XjI3Co_GF8The9TpTPekZGaykua7K2x6ZySUxIsLPEWv68bdiAMCRK3XIcEJoQHYUE0QRNUxzefX2IClHITkNIrJT8QWTIwTOlnc_oznPt2l43SLKYG5lErObbToxGO1UKslH36YnydSUqee5B327aNrNx3LlXjiQJh1FoLby57G_8794uFU6c.Lk_UKetA743K.UBo1OOnfzmbhlSIE7LC__0Ey6mwYlIAvuY0oZu5rQJeuR75GNOG3bR_CYgISMWUS.jvQSmzItT6Dyi7wooY35YykVTwBkBijDujyx6RkFXxe2iVAbbCwfOYkFobCYxUWG5wSvfKs7sO.40wyx0CoKpMqou1XnjPR7_TucQUwhttYwhWK8JOPHPYT2vfZC9Jo2LE_3pBOst_Tb7GB6NvCkcAkVbI8x6VWFxhYiD3cccpzukRtzCDs2CkDlfn_2qoOQnqDTvZeM8303WaRQRf1wD_vl9XnAICA2WkAodgIXHsPlHLw6i7UiBc_l5439SyxFu8C8aNYxSbEy6rOzcQNg3EDcbdAMnzuRbxVb0D7LHX41qZUObXHK4KgxMLHXrZ.QlhWPT.MDhMgVmv7pmtfkh3gVE8mTL5yZkl3Y8LIN5uD8Ck07w1P7knprurXWtJm2xcY1Qt8qOKI9xrojHWVZDByFc4dyPTrOz6waBtt9LPaZnku9rLCYLG.a.qrVb70jujH8XX0Hi2P1vUbYxOLC1yYtMhm9qQymVcl0whGm446Zhwhrs3g94H7lSG1sZ3yr.1cJSW8k2m6D3EcCgnqKsL3jwCb5pOGMGXXp_Sm8vkXse4Ju4qKdrkMIlneme6ilICWvpiy0kr_yr._A6FdjxZtEGKrcqbdLyvRmrm.FuuZdaKrPn_cCeZlO8GoaynhgkDcLBujeKDLKXZCntcI14eemeOI0QRf1qnGyH0VwLfWyvpFunbSmXMDw5qG9l5_lKFYzayUqNuyKodKSTMV6YszGoCfTw4yY5YtYz79m.W7DndjRElAV7ArvmuUzuM8GwmbAeuEvKM78VRDi4ezUJLpp4X7P.Oq0D75b.YiFR7RqhYD.Y._lehJBsP9cm0BcdA_jAzW.2.mqIEiIl2vq8pFhgfjrWeJWAK7mUhpDVZ1jUe5HX99tCrEMPl9va.r1iVB2oLTihvy61hyiI4_YwSGag4uIUZZBrfUIT2x_dypA.VhBFoZTkDw013ig9b3eKRTYrZe7Z_B.4ZEiEz6rvbKeiBj5llNm6vp4xAmCZS4Affp3w2OdAtjh06QvMcXL.vCF7rJViHMQZ7H7lrj2J8ZkrBtQNpks.7ebz5Biy7YtekLuB62bsK4IImMWGnPfJY4mWS8J_SKXXwn4PTTtsTF43YExrmEuu9gJHs5i4yKuxX0qt4gEzP8LP52H1IZoTpeJ1ohUPRZkDStcfWxsmSZ8eI7aDPT9S52_pe9Hbucdu4vkZ7or_T0C2ogdlqY.YesuOLXSIBJJxqmxvWnLTHP7pEjv1Dd1xlMbl2bAbdFDiJhgksT7u.Vqfug4AiU2ZpafB2Nh8JUZVBv2pfqZUI1ZM1TllV6dqRfPbMWw4Intqa_2dcG2IVqN6VWf3WUI0z1g409E3MzDLQuBnTLa6tc8J3rV29SCBgBXSqbG8hl0d84C_P3z1gZgfXxKu0AXWnwBfCmVjEc6fXr28c7wLWvel69E3iXe2ufZo58ROtE3wHoYOVpAhd1IRhwOEM8dSLQFm6d8GiUPwDO9ESNfBf1hAw5.NolPbLCxDu4SmaVQp321niytTabwE08XNzlBJOJkWEu7g5U9yfRt2K8uPC0PAHzPzAgBs7MGY"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9135115bbea53f4b';window._cf_chl_opt.cOgUHash = location.hash === '' && location.href.indexOf('#') !== -1 ? '#' : location.hash;window._cf_chl_opt.cOgUQuery = location.search === '' && location.href.slice(0, location.href.length - window._cf_chl_opt.cOgUHash.length).indexOf('?') !== -1 ? '?' : location.search;if (window.history && window.history.replaceState) {var ogU = location.pathname + window._cf_chl_opt.cOgUQuery + window._cf_chl_opt.cOgUHash;history.replaceState(null, null, "\/ophthalmology-and-optometry-conference-in-december-2025-in-istanbul?__cf_chl_rt_tk=Ggb55ag8Ub55XEAG28mnSrcixXmYiBw9gR.bo9wct9I-1739787867-1.0.1.1-VgHYh6sXA4Ol0B1CzKcrvffsXref1NxixezOQ2mfZKU" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>