{"version":"1.0","provider_name":"Games Learning Society","provider_url":"https:\/\/www.gameslearningsociety.org\/wiki","author_name":"GLS Team","author_url":"https:\/\/www.gameslearningsociety.org\/wiki\/author\/gls-team\/","title":"What causes astigmatism? - Games Learning Society","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"bF6ZMRdoBr\"><a href=\"https:\/\/www.gameslearningsociety.org\/wiki\/what-causes-astigmatism\/\">What causes astigmatism?<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.gameslearningsociety.org\/wiki\/what-causes-astigmatism\/embed\/#?secret=bF6ZMRdoBr\" width=\"600\" height=\"338\" title=\"&#8220;What causes astigmatism?&#8221; &#8212; Games Learning Society\" data-secret=\"bF6ZMRdoBr\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script>\n\/*! This file is auto-generated *\/\n!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);\n\/\/# sourceURL=https:\/\/www.gameslearningsociety.org\/wiki\/wp-includes\/js\/wp-embed.min.js\n<\/script>\n","description":"What Causes Astigmatism? Astigmatism is a type of refractive error that occurs when the cornea or lens of the eye has a mismatched curve, causing light to bend differently as it enters the eye, resulting in blurred or distorted vision. The exact cause of astigmatism is unknown, but it can be present at birth or ... Read more","thumbnail_url":"https:\/\/www.gameslearningsociety.org\/wiki\/wp-content\/uploads\/2025\/02\/gls-featured.png","thumbnail_width":1200,"thumbnail_height":630}