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: '9135012b6dfffcde',cH: 'VcSKSKCYnY.6NNlwm4zttn9DBmCngA8SPTyErO5RB1I-1739787204-1.2.1.1-f7UJs2YNS2v9ZaUc9HXcRnb6Rb7QdiparaldPFe7mS6HiTAdIfnk0TwXqxB.VC53',cUPMDTk: "\/cataract-conference-in-december-2025-in-istanbul?__cf_chl_tk=Q5R17jZgbEORvmHQCKyRh0wjwrMb8T_yjCJ9t7QKiCA-1739787204-1.0.1.1-Hm0tc3LS9aMPwocy06ZBIm7Fcuy2QViObuJXPRPPA0o",cFPWv: 'b',cITimeS: '1739787204',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/cataract-conference-in-december-2025-in-istanbul?__cf_chl_f_tk=Q5R17jZgbEORvmHQCKyRh0wjwrMb8T_yjCJ9t7QKiCA-1739787204-1.0.1.1-Hm0tc3LS9aMPwocy06ZBIm7Fcuy2QViObuJXPRPPA0o",md: "KW7Yuw75vOw7wBUkBZQRaVGTiPfhflEnkAN1A96zlW0-1739787204-1.2.1.1-HseB4koAibnbTODWx0umFTMbBpH.NeJZJ302NSm9CQzvKrCD1sH9WEvfNtml1BjR_sdWbSKyL30lk7crl7ipE1lZKY1WTJZr4WpeL7CAZ9_FjJozkkf96bWfR8bRdNJZ5VFQqKiTTLF9pTvcPDsadnd4p5X8bXqq0YhxugbUTvDsywC3aW6Di8QJzp7gkR8Pz9l_.qtnLPZKPzVwHu0ujn5Zc_YtgpjbV_CoYfBKMloK9yIS76kS3d6L87vuLIWWE.y7ODdCBmyM.3OUg7bHOCXiDnIHg3F51JOe7V_S9IvWHKtWDuLhwnsa8qAnH..iVHUU5Edrmo1hgjUnvT2YyRcTx6E79VHlGA7yKcpUozvJtVG5qiC5gXf.yIRn6WldH4pF4LteDNSx8EXcBeXR7Tmpb87JiqwBT31dKf4DtG0ZCKJruXLQcj2Moq_JISIuBIu1lzB9VSuxPq1OkFkxB2QcvQuEreHhtHRCudt6.8JK9SSc8LWOes44PtCwBnJGCZeKXIqqStoXQm4v5rhuzlfBZP9siOKNgNzECSIOTMfTnu8dPqFL5La.H6qYim17EQ.Ll9sUyxs5IAEOEQm65fUYpLJAD.7PWxiJE9nrBVKLCOgnTBOvs1yIWCsV4CAnLMtP4mA7brKhZcxuT8wu_CwZ5BShSnLWUHNWyme6G4XrX4aBAWu2PJ9caFr3OYrqNfF94NKqNpaq1cm5tUjVqAzL3lAk9tHFYpPUrk1.WqgsgGgG7ZNWarDroqI1kxuDF_1b.ZsHpvZjDLt2nDqhxZkZY5TDHtnx0spLz17.jP9ViH130Ciw2GA1AXUA2F3CnvRBdg.ptoJMudf7gs9SqNk6b_HFYfbJKn5NFR9YP37rmsAcP.HMiYAW8vu3mJUjStXcnawzPm0UAgUd0QYEEsv5rJryDmFVkT_yPvypVgZGpxC9p4fEFNAExvjf2VjDjRzFKrt6T6qgads_vV3KPWpv5yJvgCd8FG0pky_rlnXAMy05G9.kfDWu6IvCUaeF8sCUmBYKD6MjqnEPM0eHgkN0oygtX4EEtKy9RwDZmK2E2khVIrTxYE7rqsA..EzU3LykYHO.tF5AA0GN37TPPIMEsuMLvqG5Y_iaVP_8CAxlw.3K2HnPT5cYW6k31snCT.NxxUjPe7BsFKrk89ckTqrDmeVx84X7.iy.vD9z4tD7I8KuGlGh9Rc0e5fpgl2e39hGa_v8ZDm48KHr82ILCXHyT6Neh0gcGCuSSUd1lOZVnuKEM4jznVPFfKrxJTsiaKW2S2.uUEypHThQkbbnJE9xHNIuRTpk6TTUIMFV36hww8L3jUklhvK_ubKT3rkUBn69L2kt6InJVYwERFY6Tn6S7W_LbxdBTbOEXAGhL70A30rMvasTilv4Bj9QdnQSgcejI7UuyOK7zmUD.LhjHbnlvPIHECzrz2AFvogoVRKlB0pue_KpmBy8_qkjtVRg_BWPCe5g3AZTNP1ZRG783bPyBb9grFSXi_RHGEqvhzCStdCvj3QIohkqZ7hGxTJT7Dg7iQEx.6HGBTRO349onSWQqL1H5txcxPUuOo9mT916JjmjvTd55pAyOPyguI7XOAWpB_8K3v2eg.YgxxRA9AVT7ws8I74y.N3GPG3h_r5gyGRHu9mrXY5NHjc1a7drwEiKn60jyz1fooqPgGbbbefICGyV0Y8WTfvatk7rgHDN6wdhbVke8q.DcggpUvi_TBKp76_XMpoYEK00_k15Yhd5ikfwqyppaBQf6UxdrXuKqVm6gIfW_x9C6imI2Exsebrjm_AXv83wigzyWAVOi0Utx9uJ6ZTEdmhbK7mIB.vOZ3DYjCXVrDnCZdZqZ3NKHR2MSQx7Z1IBcbStlx1JM.RhbqAbqN7ftbi6PesW2rh1MAX2BNrjspZ2qyH38HC0C9QMu6W5QGYE__dyeOhR4tZXuRa5UQkguxXLM0bIbrhWS_UqL6Tna4rwxSh8BXIY",mdrd: "cpOfge5UOHeMXgi5tUVQ3TZt.4zQ3g4bD_DE4LHujnY-1739787204-1.2.1.1-gA8cZ.QeG7qXVfH_OAPCNEAopWYoKQjNMwIa9z_cPyqskDxOYulvXl.A9qzsJMhgJW1PiqFZcKOzo0ArzuLPMzOmWpZuf6Ci5GpVDFRW972j4f4jiLTFLCt3hkgbXIpCwBLQFkFPLeqopmVNCR36tPuQn0298_dixAFvBrUtUCeuZ5bIE08UoHVk_5nmTZz4pIgC_6G3vH5HlL43Oz.VzqZO6opvx4ncyzkLVTqan4NUuSF1ZOXY3L7kalXRQASFk8tmNneVwJr4yzw.PceDr3csYfARIEhVvjKIcu8_lKrOqwG9NYkDYQ0LUi2IuQgb8.rDsrwYkAlCZK04JKPYeIpgAjj04yOhj8yrnahzsgw2SIPDruRJehQS8dwYUURQpE1irAz0s88wwP_lC6VHhFSg8D_Qf1s2OhicxF4KXa_hrtSVRZYVuUY.Fq4fWuOidizeNEGet29yxnNlwiWlbg.nBCAHZuwQ7RcLYP7MCmMQ777QLWuNSteZtetaVL8rdOOlXiEa9Rx_vfllqWDNqPw.nY_J2Gr6dvORmhMAb1oZg_bz4TpG85qmzg0JoWSlC3f4TAIndJf1d1wWDEq9PDywDWdm9JRS8K9.P5VxRzCnaugKEK2fA2rsR5PQ5QWQVAWWDvDdP2Xk1PD9zXi508Mb10SuF86fNSaPcpntcNn1LSfEFG_38EwV7DiNoFS9foecF2qwO.MA2QmBmxPQdUnoNqwuO_zaAqOcGJlQPxjvbH_NfAoOwb_kS00tOuUj2uw3nT5AbJu7AOTuc10tx1Wd2eHsMPO74_Y146gEg2DTVA4Bi4irFWLIT8ZJGBo20MQfRITSSTepzd99C27ASpLssmFONUGg.3h9D3CrIkZXFOy9Q2N06Yr10FnVI9QXHwxeC7aS0lmoFfSQWqEuh5wGjtSDWFBYcX4GOubFznxS7CIOqs4bmZuLWm9Db8dOTpqoNqW3UU6baXFRxBK5le6OQHf6QODa.fYO30ej.U.zI9t5PV4sZ6wzXDHzzv_0eyobpodsXcd3bpCrY6BSggXKh8ObDv1ubP_n0rvcM5ffdSbeGLyVPDrv08.S_8cKi8zE6GA_9zDHAnw7c._YH6vKi0JQfsCtlCYBiniBKtRnxlm88dSM4lpwHccy3oC07MXb8dwBssvBczFFY8hiWetoBjjoYZwsyo9Z02VvQxHD2GeuSqCozUe_ZzDzfCpDEsTto76YQ6.unliHsxzzTXBharICkdq7YeoNhwuoG5Re96VeanQPMx2e5d8L6JnJ46EYD47h83x9hKQr5xamxT3Skv9GjqKwSiie3FL9ZZXOqWy2Z8XH0JoEgwcgp6h1Z8WFSbBmNSEYkZJzTYrs5vU90CHgTIdeJfADayClez34HI7ps89_n5O4JFFHVtKMiSVfwM6j4qjSSVy6CN1C73gwu8ZURwcbpHmmNCPtlPLNKTCDVxspXjg75Z8UPmA6MUMTNcAW4TTaf.aFgWRw7rSsj.AJ0c1IvsgXdeDTuq8xy1rXBmg_d7zh2tc8vE.eBSEjY7YQP1F1HRW_PHSiktduYtYAx9UikUxdr1ecBnAtBwvTXmpIs0Jw6IIcGYwvV.T3FcafqQHY4cmIg4puO7sc3sN2GBMUPEnKk.tba2Cw0SHhuijJYHMaEisSvNVx5q5pVW1ZzKpomjR0hFhIWVGc.GYg0kMHtFB_4VvEt2pYw7vywrHqCskQuSXMr3gJ_l5Rh9I_1AY_dkgELi.wL6_JUcBjWZPoO6kvXGS4xWPq3h8nCJ26h5BECFiyoqqCuviEf2oVlJgFsLAE7fcqiwBhq99Jea3_wEBdlkoP25HA1yqzH79M26mPWxjwxbmSq01TgEns7b93I1VQjtz4eEf.pnteb1UfVWrZnKzYBW8WdiDDelGG3VU2eNZ_O0mSsrNr09mUS_D9_Hq4_edQMvMcs7XwAdNGEtoYxEraUNU"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=9135012b6dfffcde';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, "\/cataract-conference-in-december-2025-in-istanbul?__cf_chl_rt_tk=Q5R17jZgbEORvmHQCKyRh0wjwrMb8T_yjCJ9t7QKiCA-1739787204-1.0.1.1-Hm0tc3LS9aMPwocy06ZBIm7Fcuy2QViObuJXPRPPA0o" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>