{"version":"1.0","provider_name":"Christian Bartels Optik","provider_url":"https:\/\/bartels-optik.de\/en\/","author_name":"Christian Bartels","author_url":"https:\/\/bartels-optik.de\/en\/author\/cbo\/","title":"Progressive Lenses explained - Christian Bartels Optik","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"EsSguaOYKV\"><a href=\"https:\/\/bartels-optik.de\/en\/2026\/10\/progressive-lenses-explained\/\">Progressive Lenses explained<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/bartels-optik.de\/en\/2026\/10\/progressive-lenses-explained\/embed\/#?secret=EsSguaOYKV\" width=\"600\" height=\"338\" title=\"&#8220;Progressive Lenses explained&#8221; &#8212; Christian Bartels Optik\" data-secret=\"EsSguaOYKV\" 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\/\/# sourceURL=https:\/\/bartels-optik.de\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/bartels-optik.de\/wp-content\/uploads\/2026\/10\/close-up-senior-female-restaurant-reading-e1793190871973.jpg","thumbnail_width":2560,"thumbnail_height":1703,"description":"If reading on your smartphone becomes more difficult or nearby text appears blurry, presbyopia is often the cause. This natural process usually begins around age 40. Progressive lenses can help you see clearly at various distances again\u2014without having to constantly switch glasses. How are progressive lenses constructed? What makes progressive lenses special is that they combine multiple vision zones within ... Read More"}