1.0Institut de la Màculahttps://www.institutmacula.com/en/mllibrehttps://www.institutmacula.com/en/author/mllibre/rich600338<blockquote class="wp-embedded-content" data-secret="tJ995j4r19"><a href="https://www.institutmacula.com/en/treatment/queratectomia-fototerapeutica-ptk/">Phototherapeutic Keratectomy (PTK)</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://www.institutmacula.com/en/treatment/queratectomia-fototerapeutica-ptk/embed/#?secret=tJ995j4r19" width="600" height="338" title="“Phototherapeutic Keratectomy (PTK)” — Institut de la Màcula" data-secret="tJ995j4r19" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script> /*! This file is auto-generated */ !function(d,l){"use strict";l.querySelector&&d.addEventListener&&"undefined"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!/[^a-zA-Z0-9]/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret="'+t.secret+'"]'),o=l.querySelectorAll('blockquote[data-secret="'+t.secret+'"]'),c=new RegExp("^https?:$","i"),i=0;i<o.length;i++)o[i].style.display="none";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute("style"),"height"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):"link"===t.message&&(r=new URL(s.getAttribute("src")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener("message",d.wp.receiveEmbedMessage,!1),l.addEventListener("DOMContentLoaded",function(){for(var e,t,s=l.querySelectorAll("iframe.wp-embedded-content"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute("data-secret"))||(t=Math.random().toString(36).substring(2,12),e.src+="#?secret="+t,e.setAttribute("data-secret",t)),e.contentWindow.postMessage({message:"ready",secret:t},"*")},!1)))}(window,document); //# sourceURL=https://www.institutmacula.com/wp-includes/js/wp-embed.min.js </script> https://www.institutmacula.com/wp-content/uploads/2023/05/Queratectomia-fototerapeutica-PTK-m-1.jpg440250Phototherapeutic 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 […]