{"id":7556,"date":"2023-05-02T16:45:58","date_gmt":"2023-05-02T14:45:58","guid":{"rendered":"https:\/\/www.institutmacula.com\/tractament\/queratectomia-fototerapeutica-ptk\/"},"modified":"2025-08-19T10:53:02","modified_gmt":"2025-08-19T08:53:02","slug":"queratectomia-fototerapeutica-ptk","status":"publish","type":"tractament","link":"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/","title":{"rendered":"Phototherapeutic Keratectomy (PTK)"},"content":{"rendered":"\n<p>Phototherapeutic keratectomy (PTK) with excimer laser is a surgical technique used to regularize the corneal surface and remove opacities with the aim of restoring corneal transparency, allowing light and images to pass into the eye, and attempting to resolve the corneal disease.<\/p>\n\n\n\n<p>PTK consists of applying, for a few seconds, a diluted alcohol solution on the corneal epithelium to harden it and allow its dissection. After removing the outer layer of the cornea, excimer laser impacts are applied to the area to be treated in order to eliminate the opacified or damaged zone and restore visual acuity.<\/p>\n\n\n\n<p>It is performed under local anesthesia in the operating room with the necessary sterile measures. After surgery, tearing, eye redness, and various discomforts may appear, which disappear after a few days.<\/p>\n","protected":false},"featured_media":5252,"parent":0,"template":"","meta":{"_acf_changed":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"class_list":["post-7556","tractament","type-tractament","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Phototherapeutic Keratectomy (PTK) - Institut de la M\u00e0cula<\/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.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Phototherapeutic Keratectomy (PTK) - Institut de la M\u00e0cula\" \/>\n<meta property=\"og:description\" content=\"Phototherapeutic keratectomy (PTK) with excimer laser is a surgical technique used to regularize the corneal surface and remove opacities with the aim of restoring corneal transparency, allowing light and images to pass into the eye, and attempting to resolve the corneal disease. PTK consists of applying, for a few seconds, a diluted alcohol solution on [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/\" \/>\n<meta property=\"og:site_name\" content=\"Institut de la M\u00e0cula\" \/>\n<meta property=\"article:modified_time\" content=\"2025-08-19T08:53:02+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.institutmacula.com\/wp-content\/uploads\/2023\/05\/Queratectomia-fototerapeutica-PTK-m-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"440\" \/>\n\t<meta property=\"og:image:height\" content=\"250\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/\",\"url\":\"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/\",\"name\":\"Phototherapeutic Keratectomy (PTK) - Institut de la M\u00e0cula\",\"isPartOf\":{\"@id\":\"https:\/\/www.institutmacula.com\/es\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.institutmacula.com\/wp-content\/uploads\/2023\/05\/Queratectomia-fototerapeutica-PTK-m-1.jpg\",\"datePublished\":\"2023-05-02T14:45:58+00:00\",\"dateModified\":\"2025-08-19T08:53:02+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/#primaryimage\",\"url\":\"https:\/\/www.institutmacula.com\/wp-content\/uploads\/2023\/05\/Queratectomia-fototerapeutica-PTK-m-1.jpg\",\"contentUrl\":\"https:\/\/www.institutmacula.com\/wp-content\/uploads\/2023\/05\/Queratectomia-fototerapeutica-PTK-m-1.jpg\",\"width\":440,\"height\":250},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Inici\",\"item\":\"https:\/\/www.institutmacula.com\/en\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Tractaments\",\"item\":\"https:\/\/www.institutmacula.com\/tractament\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Phototherapeutic Keratectomy (PTK)\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.institutmacula.com\/es\/#website\",\"url\":\"https:\/\/www.institutmacula.com\/es\/\",\"name\":\"Institut de la M\u00e0cula\",\"description\":\"Innovating Eye Care\",\"publisher\":{\"@id\":\"https:\/\/www.institutmacula.com\/es\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.institutmacula.com\/es\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.institutmacula.com\/es\/#organization\",\"name\":\"Institut de la M\u00e0cula\",\"url\":\"https:\/\/www.institutmacula.com\/es\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/www.institutmacula.com\/es\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.institutmacula.com\/wp-content\/uploads\/2024\/02\/logo-Institut-de-la-Macula-24.png\",\"contentUrl\":\"https:\/\/www.institutmacula.com\/wp-content\/uploads\/2024\/02\/logo-Institut-de-la-Macula-24.png\",\"width\":300,\"height\":120,\"caption\":\"Institut de la M\u00e0cula\"},\"image\":{\"@id\":\"https:\/\/www.institutmacula.com\/es\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Phototherapeutic Keratectomy (PTK) - Institut de la M\u00e0cula","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/","og_locale":"en_US","og_type":"article","og_title":"Phototherapeutic Keratectomy (PTK) - Institut de la M\u00e0cula","og_description":"Phototherapeutic keratectomy (PTK) with excimer laser is a surgical technique used to regularize the corneal surface and remove opacities with the aim of restoring corneal transparency, allowing light and images to pass into the eye, and attempting to resolve the corneal disease. PTK consists of applying, for a few seconds, a diluted alcohol solution on [&hellip;]","og_url":"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/","og_site_name":"Institut de la M\u00e0cula","article_modified_time":"2025-08-19T08:53:02+00:00","og_image":[{"width":440,"height":250,"url":"https:\/\/www.institutmacula.com\/wp-content\/uploads\/2023\/05\/Queratectomia-fototerapeutica-PTK-m-1.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/","url":"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/","name":"Phototherapeutic Keratectomy (PTK) - Institut de la M\u00e0cula","isPartOf":{"@id":"https:\/\/www.institutmacula.com\/es\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/#primaryimage"},"image":{"@id":"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/#primaryimage"},"thumbnailUrl":"https:\/\/www.institutmacula.com\/wp-content\/uploads\/2023\/05\/Queratectomia-fototerapeutica-PTK-m-1.jpg","datePublished":"2023-05-02T14:45:58+00:00","dateModified":"2025-08-19T08:53:02+00:00","breadcrumb":{"@id":"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/#primaryimage","url":"https:\/\/www.institutmacula.com\/wp-content\/uploads\/2023\/05\/Queratectomia-fototerapeutica-PTK-m-1.jpg","contentUrl":"https:\/\/www.institutmacula.com\/wp-content\/uploads\/2023\/05\/Queratectomia-fototerapeutica-PTK-m-1.jpg","width":440,"height":250},{"@type":"BreadcrumbList","@id":"https:\/\/www.institutmacula.com\/en\/treatment\/queratectomia-fototerapeutica-ptk\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Inici","item":"https:\/\/www.institutmacula.com\/en\/"},{"@type":"ListItem","position":2,"name":"Tractaments","item":"https:\/\/www.institutmacula.com\/tractament\/"},{"@type":"ListItem","position":3,"name":"Phototherapeutic Keratectomy (PTK)"}]},{"@type":"WebSite","@id":"https:\/\/www.institutmacula.com\/es\/#website","url":"https:\/\/www.institutmacula.com\/es\/","name":"Institut de la M\u00e0cula","description":"Innovating Eye Care","publisher":{"@id":"https:\/\/www.institutmacula.com\/es\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.institutmacula.com\/es\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/www.institutmacula.com\/es\/#organization","name":"Institut de la M\u00e0cula","url":"https:\/\/www.institutmacula.com\/es\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/www.institutmacula.com\/es\/#\/schema\/logo\/image\/","url":"https:\/\/www.institutmacula.com\/wp-content\/uploads\/2024\/02\/logo-Institut-de-la-Macula-24.png","contentUrl":"https:\/\/www.institutmacula.com\/wp-content\/uploads\/2024\/02\/logo-Institut-de-la-Macula-24.png","width":300,"height":120,"caption":"Institut de la M\u00e0cula"},"image":{"@id":"https:\/\/www.institutmacula.com\/es\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.institutmacula.com\/en\/wp-json\/wp\/v2\/tractament\/7556","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.institutmacula.com\/en\/wp-json\/wp\/v2\/tractament"}],"about":[{"href":"https:\/\/www.institutmacula.com\/en\/wp-json\/wp\/v2\/types\/tractament"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.institutmacula.com\/en\/wp-json\/wp\/v2\/media\/5252"}],"wp:attachment":[{"href":"https:\/\/www.institutmacula.com\/en\/wp-json\/wp\/v2\/media?parent=7556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}