{"version":"1.0","provider_name":"Mata Clinic &amp; Optometrist Blog","provider_url":"https:\/\/mataasia.com\/blog","author_name":"mataclinic","author_url":"https:\/\/mataasia.com\/blog\/author\/mataclinic\/","title":"Colourblindness: COLOUR DEFICIENCY - Mata Clinic &amp; Optometrist Blog","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"cgUXSoqgKt\"><a href=\"https:\/\/mataasia.com\/blog\/2019\/10\/28\/colourblindness-colour-deficiency\/\">Colourblindness: COLOUR DEFICIENCY<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/mataasia.com\/blog\/2019\/10\/28\/colourblindness-colour-deficiency\/embed\/#?secret=cgUXSoqgKt\" width=\"600\" height=\"338\" title=\"&#8220;Colourblindness: COLOUR DEFICIENCY&#8221; &#8212; Mata Clinic &amp; Optometrist Blog\" data-secret=\"cgUXSoqgKt\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\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\/* ]]> *\/\n<\/script>\n","description":"WHAT \u2013In normal people, colour is perceived by small cells known as cones. For someone with perfect colour vision, there are three types of cones which respond to blue, green or red. For each object that we look at, the cones send signals to the brain to say relatively how much blue, green, or red [&hellip;]"}