{"id":51716,"date":"2026-01-20T10:07:02","date_gmt":"2026-01-20T10:07:02","guid":{"rendered":"https:\/\/www.elza-institute.com\/?p=51716"},"modified":"2026-01-20T12:21:57","modified_gmt":"2026-01-20T12:21:57","slug":"personalized-corneal-cross-linking-practical-scenarios","status":"publish","type":"post","link":"https:\/\/www.elza-institute.com\/pt\/personalized-corneal-cross-linking-practical-scenarios\/","title":{"rendered":"Reticula\u00e7\u00e3o personalizada da c\u00f3rnea - cen\u00e1rios pr\u00e1ticos"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"51716\" class=\"elementor elementor-51716\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-858a88c e-flex e-con-boxed e-con e-parent\" data-id=\"858a88c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-0e08b0d elementor-widget elementor-widget-text-editor\" data-id=\"0e08b0d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><!-- ELZA Blog Post: Personalizing Corneal Cross-Linking (HTML for Elementor) --><\/p><p>Dr. <a href=\"https:\/\/www.elza-institute.com\/pt\/sobre\/emilio-torres\/\" target=\"_blank\" rel=\"noopener\">Emilio de Almeida Torres-Netto, MD, PhD, FEBO, FWCRS<\/a>, cirurgi\u00e3o de c\u00f3rnea e catarata-refractiva do Instituto ELZA, publicou recentemente um artigo convidado na <em>O oftalmologista<\/em> explorando a forma como o reticulado da c\u00f3rnea (CXL) evoluiu de um \u00fanico protocolo padronizado para uma plataforma terap\u00eautica personalizada. Em\u00a0<a href=\"https:\/\/theophthalmologist.com\/issues\/2026\/articles\/january\/personalizing-corneal-cross-linking\/\" target=\"_blank\" rel=\"noopener\"><em>Personaliza\u00e7\u00e3o do Cross-Linking da C\u00f3rnea<\/em><\/a> (janeiro de 2026), o Dr. Torres-Netto examina a forma como as estrat\u00e9gias de CXL personalizadas podem ser aplicadas em cen\u00e1rios cl\u00ednicos do mundo real, desde doentes com boa vis\u00e3o at\u00e9 ao planeamento da cirurgia da catarata e irregularidades avan\u00e7adas da c\u00f3rnea.<\/p><h4>Personaliza\u00e7\u00e3o do Cross-Linking da C\u00f3rnea: De \u201cDresden\u201d a uma estrat\u00e9gia espec\u00edfica para cada paciente<\/h4><p>O cross-linking corneano (CXL) come\u00e7ou como uma interven\u00e7\u00e3o \u00fanica e padronizada: o \u201cprotocolo de Dresden\u201d. Atualmente, \u00e9 melhor entendido como uma plataforma de tratamento que pode ser adaptada ao est\u00e1dio da doen\u00e7a, ao fen\u00f3tipo da c\u00f3rnea, ao comportamento epitelial e ao contexto refrativo. O artigo de janeiro de 2026 de Torres-Netto enquadra esta mudan\u00e7a atrav\u00e9s de tr\u00eas cen\u00e1rios cl\u00ednicos pr\u00e1ticos: (1) pacientes com boa vis\u00e3o, (2) ceratocone com catarata, e (3) c\u00f3rneas marcadamente irregulares onde tanto a estabilidade da c\u00f3rnea como a qualidade \u00f3tica s\u00e3o relevantes no planeamento.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-a592252 e-flex e-con-boxed e-con e-parent\" data-id=\"a592252\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-94ba1cd elementor-widget elementor-widget-image\" data-id=\"94ba1cd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"768\" height=\"317\" src=\"https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/Corneal-Regularization-PACE-CXL-Cataract-768x317.jpg\" class=\"attachment-medium_large size-medium_large wp-image-51718\" alt=\"\" srcset=\"https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/Corneal-Regularization-PACE-CXL-Cataract-768x317.jpg 768w, https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/Corneal-Regularization-PACE-CXL-Cataract-300x124.jpg 300w, https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/Corneal-Regularization-PACE-CXL-Cataract-1024x422.jpg 1024w, https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/Corneal-Regularization-PACE-CXL-Cataract-18x7.jpg 18w, https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/Corneal-Regularization-PACE-CXL-Cataract.jpg 1258w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-831cd63 e-flex e-con-boxed e-con e-parent\" data-id=\"831cd63\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b5878c1 elementor-widget elementor-widget-text-editor\" data-id=\"b5878c1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><!-- ELZA Blog Post: Personalizing Corneal Cross-Linking (HTML for Elementor) --><\/p><h4 style=\"color: #54595f; font-family: 'Open Sans', Roboto; font-weight: 600; line-height: 26.4px; font-size: 22px;\">Cen\u00e1rio 1: Boa vis\u00e3o - prioridade \u00e0 integridade epitelial e \u00e0 redu\u00e7\u00e3o dos riscos<\/h4><p>Historicamente, o CXL com epit\u00e9lio (epi-on) tem tido um desempenho inferior ao do CXL sem epit\u00e9lio (epi-off) porque o epit\u00e9lio limita a disponibilidade de riboflavina no estroma e restringe a difus\u00e3o de oxig\u00e9nio - ambos fundamentais para a rea\u00e7\u00e3o de reticula\u00e7\u00e3o fotoqu\u00edmica. As abordagens transepiteliais anteriores tamb\u00e9m eram frequentemente limitadas por estrat\u00e9gias de flu\u00eancia fixa que n\u00e3o compensavam de forma consistente a disponibilidade reduzida de oxig\u00e9nio e riboflavina no estroma.<\/p><p>O artigo descreve como os conceitos modernos de epi-on tentam abordar estas limita\u00e7\u00f5es atrav\u00e9s da conce\u00e7\u00e3o do protocolo (incluindo formula\u00e7\u00f5es optimizadas de riboflavina, din\u00e2mica de oxig\u00e9nio e fornecimento de UV ajustado \u00e0 flu\u00eancia), com o objetivo de reduzir a diferen\u00e7a de efic\u00e1cia, mantendo as vantagens cl\u00ednicas da preserva\u00e7\u00e3o epitelial. Em pacientes adequadamente selecionados, a manuten\u00e7\u00e3o do epit\u00e9lio pode reduzir a dor p\u00f3s-operat\u00f3ria e minimizar os riscos relacionados com defeitos epiteliais, apoiando uma abordagem de menor perturba\u00e7\u00e3o para aqueles com boa vis\u00e3o de base ou progress\u00e3o mais lenta.<\/p><p><span style=\"font-weight: bolder;\">Onde as estrat\u00e9gias epi-on podem ser particularmente relevantes (como resumido no artigo):<\/span><\/p><ul style=\"background-color: #ffffff; font-size: 17px;\"><li style=\"font-size: 17px;\">Doentes com epit\u00e9lio fr\u00e1gil ou de cicatriza\u00e7\u00e3o lenta<\/li><li style=\"font-size: 17px;\">Indiv\u00edduos com risco acrescido de infe\u00e7\u00e3o<\/li><li style=\"font-size: 17px;\">As pessoas com doen\u00e7a da superf\u00edcie ocular ou com uma ades\u00e3o p\u00f3s-operat\u00f3ria limitada<\/li><li style=\"font-size: 17px;\">Doentes com boa vis\u00e3o e uma baixa taxa de progress\u00e3o<\/li><\/ul><h4 style=\"color: #54595f; font-family: 'Open Sans', Roboto; font-weight: 600; line-height: 26.4px; font-size: 22px;\">Cen\u00e1rio 2: Ceratocone com catarata - otimiza\u00e7\u00e3o da c\u00f3rnea para melhorar a biometria<\/h4><p>Os doentes com catarata e ectasia da c\u00f3rnea colocam desafios ao planeamento refrativo porque o astigmatismo irregular pode degradar a fiabilidade ceratom\u00e9trica e reduzir a precis\u00e3o preditiva dos c\u00e1lculos da LIO. O ponto pr\u00e1tico enfatizado \u00e9 que quando a irregularidade da c\u00f3rnea - particularmente na c\u00f3rnea central e no eixo visual - afecta significativamente as medi\u00e7\u00f5es, a otimiza\u00e7\u00e3o da c\u00f3rnea antes da cirurgia da catarata pode melhorar a qualidade biom\u00e9trica e a previsibilidade refractiva.<\/p><p>O artigo discute uma s\u00e9rie de poss\u00edveis estrat\u00e9gias de otimiza\u00e7\u00e3o da c\u00f3rnea utilizadas em olhos ect\u00e1sicos, incluindo abordagens de remodela\u00e7\u00e3o (tais como estrat\u00e9gias de an\u00e9is intracorneanos, incluindo op\u00e7\u00f5es baseadas em tecidos) e conceitos personalizados de CXL destinados a atingir fraquezas biomec\u00e2nicas focais e a incentivar a regulariza\u00e7\u00e3o da c\u00f3rnea. Esta l\u00f3gica faseada \u00e9 apresentada como uma forma de reduzir as \u201csurpresas\u201d refractivas p\u00f3s-operat\u00f3rias, melhorando os dados utilizados para os c\u00e1lculos da pot\u00eancia da LIO.<\/p><p>Quando a irregularidade da c\u00f3rnea tem um impacto m\u00ednimo nos c\u00e1lculos da LIO - ou quando os procedimentos faseados s\u00e3o impratic\u00e1veis - o artigo refere que a cirurgia da catarata pode razoavelmente ter preced\u00eancia, sendo a otimiza\u00e7\u00e3o da c\u00f3rnea considerada mais tarde, se necess\u00e1rio. Nestes casos, a avalia\u00e7\u00e3o cuidadosa do historial das lentes de contacto continua a ser importante para evitar medidas pr\u00e9-operat\u00f3rias distorcidas.<\/p><h4 style=\"color: #54595f; font-family: 'Open Sans', Roboto; font-weight: 600; line-height: 26.4px; font-size: 22px;\">Cen\u00e1rio 3: C\u00f3rneas marcadamente irregulares - combina\u00e7\u00e3o de CXL personalizado e realce com excimer<\/h4><p>Para os olhos com assimetria ou irregularidade acentuada, o artigo descreve uma abordagem faseada ou combinada destinada a abordar tanto a estabilidade como a qualidade \u00f3tica. Os conceitos de CXL personalizado (incluindo estrat\u00e9gias epi-on personalizadas assistidas por PTK) s\u00e3o apresentados como m\u00e9todos para refor\u00e7ar seletivamente a fraqueza biomec\u00e2nica para encorajar um perfil corneano mais regular sem remover o tecido estromal.<\/p><p>Uma vez estabelecida a estabilidade da c\u00f3rnea, pode considerar-se a possibilidade de um refor\u00e7o com excimer laser guiado por topografia ou por frente de onda em casos cuidadosamente selecionados com espessura e reserva biomec\u00e2nica adequadas. O artigo destaca um conceito de planeamento adicional: as estrat\u00e9gias de tratamento que incorporam tanto a \u00f3tica anterior como a posterior da c\u00f3rnea podem reduzir a quantidade de abla\u00e7\u00e3o de tecido necess\u00e1ria para alcan\u00e7ar uma melhoria \u00f3tica significativa - uma considera\u00e7\u00e3o especialmente relevante em c\u00f3rneas ect\u00e1sicas em que a preserva\u00e7\u00e3o do tecido \u00e9 fundamental.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bfe2827 e-flex e-con-boxed e-con e-parent\" data-id=\"bfe2827\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e04d6a2 elementor-widget elementor-widget-image\" data-id=\"e04d6a2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"800\" height=\"396\" src=\"https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/tangentialmaps-1024x507.jpg\" class=\"attachment-large size-large wp-image-51719\" alt=\"\" srcset=\"https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/tangentialmaps-1024x507.jpg 1024w, https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/tangentialmaps-300x148.jpg 300w, https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/tangentialmaps-768x380.jpg 768w, https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/tangentialmaps-18x9.jpg 18w, https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/tangentialmaps.jpg 1374w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-01367e7 e-flex e-con-boxed e-con e-parent\" data-id=\"01367e7\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1341184 elementor-widget elementor-widget-text-editor\" data-id=\"1341184\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4 style=\"color: #54595f; font-family: 'Open Sans', Roboto; font-weight: 600; line-height: 26.4px; font-size: 22px;\">Da normaliza\u00e7\u00e3o \u00e0 personaliza\u00e7\u00e3o: repensar o CXL<\/h4><p>O CXL j\u00e1 n\u00e3o deve ser visto como um procedimento \u00fanico. O paradigma de personaliza\u00e7\u00e3o descrito no artigo centra-se na sele\u00e7\u00e3o da abordagem, do momento e dos adjuvantes adequados do CXL de acordo com o contexto cl\u00ednico individual, incluindo:<\/p><ul style=\"background-color: #ffffff; font-size: 17px;\"><li style=\"font-size: 17px;\">Taxa de progress\u00e3o e gravidade da doen\u00e7a<\/li><li style=\"font-size: 17px;\">Comportamento epitelial<\/li><li style=\"font-size: 17px;\">Idade do doente e expectativas visuais<\/li><li style=\"font-size: 17px;\">Necessidades de planeamento refrativo (incluindo cirurgia de cataratas)<\/li><li style=\"font-size: 17px;\">Regularidade da c\u00f3rnea e requisitos \u00f3pticos<\/li><\/ul><h4 style=\"color: #54595f; font-family: 'Open Sans', Roboto; font-weight: 600; line-height: 26.4px; font-size: 22px;\">Para al\u00e9m da estabiliza\u00e7\u00e3o<\/h4><p>Em casos selecionados, o CXL pode contribuir para a reabilita\u00e7\u00e3o \u00f3tica - especialmente quando utilizado como parte de uma estrat\u00e9gia faseada que pode incluir reticula\u00e7\u00e3o personalizada, abordagens de anel com base em tecido ou refinamento com excimer laser. Uma das principais vantagens real\u00e7adas \u00e9 o perfil poupador de tecido do CXL: uma vez que o CXL n\u00e3o remove tecido e n\u00e3o acrescenta implantes permanentes, pode ser integrado em estrat\u00e9gias sequenciais concebidas para aperfei\u00e7oar a biomec\u00e2nica e a qualidade visual.<\/p><p>Desde as c\u00f3rneas ultrafinas (em que abordagens individualizadas como a sub400 s\u00e3o referidas no artigo de origem) at\u00e9 \u00e0 irregularidade avan\u00e7ada, em que a reabilita\u00e7\u00e3o visual \u00e9 prosseguida com estrat\u00e9gias combinadas, a mensagem mais geral \u00e9 consistente: o CXL contempor\u00e2neo \u00e9 cada vez mais uma plataforma terap\u00eautica personalizada e n\u00e3o um protocolo \u00fanico.<\/p><p><span style=\"font-weight: bolder;\">Ler o artigo completo:\u00a0<\/span><a style=\"color: #942227;\" href=\"https:\/\/theophthalmologist.com\/issues\/2026\/articles\/january\/personalizing-corneal-cross-linking\/\" target=\"_blank\" rel=\"noopener\">Personaliza\u00e7\u00e3o do Cross-Linking da C\u00f3rnea (The Ophthalmologist, janeiro de 2026)<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Um artigo de janeiro de 2026 do The Ophthalmologist descreve a forma como o CXL personalizado \u00e9 aplicado em tr\u00eas cen\u00e1rios do mundo real: boa vis\u00e3o, planeamento de cataratas e c\u00f3rneas marcadamente irregulares.<\/p>","protected":false},"author":4,"featured_media":51726,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[243,1,96],"tags":[778,1331,352,561,1519,100,993,1516,945,1304,637,1517,1518,123,1515,753],"class_list":["post-51716","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-emilio-torres","category-general-news","category-popular-press","tag-cairs","tag-cataract-keratoconus","tag-corneal-cross-linking","tag-corneal-ectasia","tag-corneal-regularization","tag-cxl","tag-eco-cairs","tag-elza-epi-on","tag-elza-pace","tag-epi-off-cxl","tag-epi-on-cxl","tag-excimer-laser-enhancement","tag-iol-calculations","tag-keratoconus","tag-personalized-corneal-cross-linking","tag-zurich"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Personalized corneal cross-linking - practical scenarios - The ELZA Institute<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.elza-institute.com\/pt\/personalized-corneal-cross-linking-practical-scenarios\/\" \/>\n<meta property=\"og:locale\" content=\"pt_PT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Personalized corneal cross-linking - practical scenarios - The ELZA Institute\" \/>\n<meta property=\"og:description\" content=\"A January 2026 The Ophthalmologist article outlines how personalised CXL is applied in three real-world scenarios: good vision, cataract planning, and markedly irregular corneas.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.elza-institute.com\/pt\/personalized-corneal-cross-linking-practical-scenarios\/\" \/>\n<meta property=\"og:site_name\" content=\"The ELZA Institute\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/ELZA.Institute\/\" \/>\n<meta property=\"article:published_time\" content=\"2026-01-20T10:07:02+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-20T12:21:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.elza-institute.com\/wp-content\/uploads\/2026\/01\/corneal-maps-featured-image.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"600\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Mark Hillen\" \/>\n<meta name=\"twitter:label1\" content=\"Escrito por\" \/>\n\t<meta name=\"twitter:data1\" content=\"Mark Hillen\" \/>\n\t<meta name=\"twitter:label2\" content=\"Tempo estimado de leitura\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.elza-institute.com\/personalized-corneal-cross-linking-practical-scenarios\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.elza-institute.com\/personalized-corneal-cross-linking-practical-scenarios\/\"},\"author\":{\"name\":\"Mark Hillen\",\"@id\":\"https:\/\/www.elza-institute.com\/#\/schema\/person\/e3929262886a5a60dd6965a6bc721d15\"},\"headline\":\"Personalized corneal cross-linking &#8211; 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