CINXE.COM

Just a moment...

<!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: '91353306394d4697',cH: 'TgN6IeiO8t3wWuRZx0V60cb3v8nySwaCCCvVQZySGLA-1739789246-1.2.1.1-BdeKQI_e7M3z.ZN3SCArY16XvzOiDCIkd5omcLX9tsa0uVlwvVC54W931f4XZQvO',cUPMDTk: "\/cataract-conference-in-june-2025-in-vienna?__cf_chl_tk=ww6ZDKC6jq3IyxvhtM9sdKHGn5ukQzv.VIB.qz1Kg.M-1739789246-1.0.1.1-FK12t3HKAoyePRZ3RWeDatJjLMEFCGupaSE6h_9JU2k",cFPWv: 'b',cITimeS: '1739789246',cTTimeMs: '1000',cMTimeMs: '120000',cTplC: 0,cTplV: 5,cTplB: 'cf',cK: "",fa: "\/cataract-conference-in-june-2025-in-vienna?__cf_chl_f_tk=ww6ZDKC6jq3IyxvhtM9sdKHGn5ukQzv.VIB.qz1Kg.M-1739789246-1.0.1.1-FK12t3HKAoyePRZ3RWeDatJjLMEFCGupaSE6h_9JU2k",md: "iYrxzTz6sKfNbmURi12XOkzpUoZ01TSTKOdd5P7wEgw-1739789246-1.2.1.1-UQJdzsZAvtuB3tGaH_t0iLxKHeQFD464john78M4cD4Kn_pdmszP7YXeNMq5MiR87YmGErUgVuOnTnGfCgQWgQi4S6JWBFnZ8aFXw.vEtbik1aoYBroC_iA3yDIlnJQZ9PGkzlDNNHV5Da2e6V4FpwxuhYKAsxmOxholKkele9jGSqtiXJwW6a_eqCYoP79t9S98qk7oT_yBDVlJgwFClw8C5In_78tFcxidwWLTJ1w3GpWiXKwiX1i8Zs6oNnZ.45nVyc9OiNu2QESOeJVP2mmSGNv2VftSbt7Y5vKx8HXIy.vWRWEzqtY_d_bUVH8YGegcjIZ4J9xRpwq0eyFQPijLv7oVPkqEGQc2qFOMohDg7PgyImciwAWgL44NernuSZbacCYDOEGAEyzTWui2QXSsUzeDQtYe6FcbayFu.0OJQsciNUrvZuECNVjp3GVbZOoPHuYnsJChgyCDM73tfe37Z9PYMVwJNk4oLzUZQ7HmZfyMJQhftCNUcRVpVGr9drFa16qbrOfRSUNrWQvvKpp5Il9v7afpSN7S8.HGHMq8E_gBKCZzoA5SilbXYrLH3EETw.mhdK9dU8ZkxuLsOFF4eK2oOTgr51UrKmvDMYulYC5jPns8STHKCsM.u49zpUKYMDcJA9A0ld0Pegv7KXDsiwtsUppL8xurtXLR4ajIrojoV0CaE.sekH_RsxXkgGG3QCg4yS99vTRY8AxgzCk3RnMnCYDU3J6nTuzNVtyjR6x9noqIxgufSN4EHMZjlkH6S38Kbr2Jaz4cNga41AGu_qtg_zC7lwAhNLozlX1y57FETJSDbQWf03TN.9COCcMpZrNV8OAXPlXJlVgBqnhaF4bQuuAESua2OqvaU4SQ1K6cTpzlpkW6C5hoKRMGUQagYvkTq9snRGqR61eP5Kaf1U3CpSAkcJf.Yt_fDbc.mFvikZYaID3AVuirNHpv8Mk8PbILpbfo0S_vI91lPL.Uq2Jpdb2B_IQPG86LbVtXG0_yHLcGLM7qjRdcWfIt6sUUmaQqSAzBZvPhoTEH32BOBl..b3UHh2Zm9GZ6umSqG_ldrqhivPUAqQqIFQs.wUbHnyayDWts9mvNDoqzpp4FSNIzEUcenyJWmM5EvhtdfLjTO3oB3UAK6tjwl6YfZPBgXntPu35jV.rFnTNTLu2Nnhx7.sP8kv8DD1svhnh6lZmjs9hZ.hB7SoXw2ot6oyYXythHZVRpE7tY3mctFJ1gDBCsRMXEIlpbkIfNVQ_irPJhWY2fESXkky5ZfdCEKf.BKmJUrGbbK0FyJcYt9osom41vjLAbyhBcrT5h9HT7BK.p302LL25aYb9d9EbUBrYoSQgVDYla1kOclAlurrnbjHfWKGmYhpsKUPqiac_ZH7pNr6f9NTne_lKjVGdimDbUB5cpHzGgpcSR0fv1tT6oTKUui8zBSp1pS6XrrWh2975EKqfYvPf0l5RJNqxKS1qsZBbdxEtj4K_YAcXq7j_xqbo.8zxzmk7XTpOJZKWCkBX0OXg3lM6dkHAHIr7YHb0ezZS4wfO2CPQYc6bZwNNPrcZ0KuFgPh1oW0g7C5VOv5WKSRl5Ot4atLDrHnJY4MVbXUqjV8mmoV0rpP.DaFmnIQFihvcJpMugJ3RkRkJa0_gYXYIp_Z9CcvV3z4y7rRiY6F9lHrqLLR6GLOD2ALp5blwD2Xbys3bYMhrcUniMwUhZL6.CaQSrpsYqHW2YX3v_NFxoWJYMqUZyejLSAzoQ7XNJOi384V_y_wO3vPWosx7onCC93.aZzJ13Z6dvOS3aua7bPdPUL2T.DKdKI9U6AkcB6qLxRFJnpnCcsRVlF88Gpre05FhgVxZqfti0t4VGsefr8xvJneUAs9jP7Kh0HpP9Efr8CyH2FEQERWSxttL9LKFTbU7IPsM6ixhchW3OymiciSLMGagd5ZZlRgruhZARjVd5bTJA3jWFsnI",mdrd: "KtCeJrBvxzjO6zTrc7RbktvEVX3jtIObn893vFD5Nco-1739789246-1.2.1.1-6JejdhyPITpPPLAtt9UZb8Zajq03RWzlMBX5_Z_bd_YC0JfuQspXj1Lr_Ir14RSkr_REuAaMZuP6i5y3CjxeT1QN6JiKpd8XeDezz48Fm9HtuX4acgRKKwYwXd38_6s0Gqh0nyavmdkTDZ8lCSLYCyzTUpPMnzcjZd2IHg6Y0Ix5TKUss1IgqM88ZY7evAQmmCGCsJI1BuxgPW8jMggjyr0idoAj1zgX79unQhf7h.GsQM9Bg7_A1sHdHsrzBwnvRTNcJQsOr7G9BfxQU5RNq6clTa4Vvfef8A5G0Ebktzh8F2FZM.F9xYpT3FZ1toH5.PZcAdAks0XTTbN8X6TzFEs_xynNqDVhUaP05l.Pgii7WZ3xAOx0bOCCZJn20H2cbx37cubIzDUCrL8nxGBbIMVxJj4bA9_Lf_nBTwA1_IN2GUmekrAfs.6SyIS60EoFDLcN1q5V6u5CzJ2sGP4mF.2YjuesOnq5aJa9ftFD_j2IhW4vRo444V8n5NEC7oA8EMyRYF7J2hd5HDYALokeNQ9IMGcsZBs5cHGbsenT62FftVY0o9vmrgGnqZp8dzdCWM_YXpAPt0PazWloyP7VfW6gTlXR7AwEqIePLnNo3VYohapUVwEmGxLASBeYZ2a8GEnk5sDutRefU4FnjUo4K6dM_IBUI5vMROPuACWkJ7R1LBxc9ZGqQ87lUvQ2t.i9IbpvbdRlL1B1lM1cKxKHdGh9aIAiDp9Bn1z.Lyn4FLiwcqodyrx492GEzV0z_F70ZsYwY1i3fLf4qRWYsBYvygq8ZR8241lu92xEHfRcakw14DkZLCQ41ars5sUxp9tPA75GfoQ9GCka2RDSGlVFx3XCNqX6AQ1YaVtUOKGaLWOYzH_Hdo2eAuUcwAU7umtoYGgEdW408CCkEMHshgbwROeohu2rz5sM5L5Q9qYxti7aErwnIxoPKYjAa0SISLzcPjNt3DSt8mxB8ghrndmE442InmhA4zppPH.mFVheY1kSayQTt9nLLkymC96ihUe6bUyywXks_J2oQmhRZRaeAiw_opegNG5jritxez6a2bV5JpWKgEpxNn.Xn9c9b3YBVzN6wn_WjQgIjyjFuswTcfjQYGXaNMjTVcO7jg2TJZI9l1O5_cvZ2YxXbt06eBq5xdvKBUxHErtCy5m3aWDwg0Zgrj8uIYMU2u24wU7Orr1jsxvbDvFTOuDzk96nxvA.33LpHKiyx18.lAG.XmJ12BoJInNsUwfeAxEWJQOtEK9L4IfeIu3R9TJwldMttmbk6uO.wBHjR0Tgy.T_Rkh5gkylF0evfLaDbWw7cPlovUA6sRK3nMGfRqd9t7fciC2wgSeXZp0tyRcZSk7VeNj6HgC.rgU.vmPQ2WjE.4EEtLxon3GrsyBl9Ck0EcRBLyXn3GRz1E9TRNOgeMLPuA4e65v8Cdfx404LuN04YYiKSfQ.c4igbthkTrF_cFU6NMiGlR7KhfOn7j.oydg4HHVkywrPMvBbR0sNlB9opbtyjSb1aLJ6OWoJl_.S4fcrrTUcC6qU7EwLwxY2Wr.SJZzksSK11L83LwH8nDOQXcvJwcfdzC2xPi.B5qhNfJBPBq7qQbgNDluZw2ZsEMQy6tWYCXlHCB5WvoUt4AftZWKguMbI4_UhK_mC2tp5kxTi.hTIo3rSZwusK2oiaCkOZ7fd0OUPO93G7H.ieS2Ns0C3Xl2v0ID2Qx4ae3kNFdjgL7E.25i3i1AY0QMaAM.YUu9JPURC.IGNhIogfxtpxIdEsRp2Y9EFz0gbvgTMd1ebzh7lxQRBg.FbPvK67INFW2NpyzUMkSLLLOjU9Ri8F4l_fJt033ltkqhg6UvDz5pD21JhHN2evr8dqy9AkVh1szmE7b.EZeKdLBELlTadxf.r7M3j4rCQh2M50qU8SRwHCR29IFbYpVOl5VBAc8d_dji0RmD1KuLYKZFw0821LBMFlNk"};var cpo = document.createElement('script');cpo.src = '/cdn-cgi/challenge-platform/h/b/orchestrate/chl_page/v1?ray=91353306394d4697';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-june-2025-in-vienna?__cf_chl_rt_tk=ww6ZDKC6jq3IyxvhtM9sdKHGn5ukQzv.VIB.qz1Kg.M-1739789246-1.0.1.1-FK12t3HKAoyePRZ3RWeDatJjLMEFCGupaSE6h_9JU2k" + window._cf_chl_opt.cOgUHash);cpo.onload = function() {history.replaceState(null, null, ogU);}}document.getElementsByTagName('head')[0].appendChild(cpo);}());</script></body></html>