{"id":6004696,"date":"2026-07-07T11:00:17","date_gmt":"2026-07-07T10:00:17","guid":{"rendered":"https:\/\/coi.pt\/?p=6004696"},"modified":"2026-07-07T08:25:37","modified_gmt":"2026-07-07T07:25:37","slug":"digital-eye-strain-how-screens-affect-your-eyes","status":"publish","type":"post","link":"https:\/\/coi.pt\/en\/article\/digital-eye-strain-how-screens-affect-your-eyes\/","title":{"rendered":"Digital eye strain: how screens affect your eyes"},"content":{"rendered":"<p><span style=\"font-weight: 400\">Prolonged use of computers, smartphones and tablets has become an integral part of our professional and personal lives. However, this constant exposure can have a direct impact on eye health, with digital eye strain being one of the most common complaints today.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Understanding the effects of screens on the eyes and taking preventative measures is essential to ensure visual comfort and maintain productivity throughout the day.<\/span><\/p>\n<h2><b>What is digital eye strain?<\/b><\/h2>\n<p><span style=\"font-weight: 400\">Digital eye strain refers to the range of symptoms caused by excessive use of digital devices. When we spend several hours focusing on screens, the visual system is subjected to continuous strain, mainly due to reduced blinking and the constant need to focus on close-up objects.<\/span><\/p>\n<p><span style=\"font-weight: 400\">This phenomenon affects people of all ages, particularly professionals who work in front of a computer every day.<\/span><\/p>\n<h2><b>Main associated symptoms<\/b><\/h2>\n<p><span style=\"font-weight: 400\">The signs of digital eye strain can vary, but there are some common symptoms that should be taken seriously:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Dry or irritated eyes<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">A burning or itching sensation<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Blurred vision or difficulty focusing<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Headaches<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">A feeling of heaviness in the eyes<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Difficulty concentrating at the end of the day<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400\">These symptoms tend to get worse over time, especially when no preventative measures are taken.<\/span><\/p>\n<h2><b>How screens affect your eyesight<\/b><\/h2>\n<p><span style=\"font-weight: 400\">Prolonged exposure to screens contributes directly to the development of digital eye strain. The main factors include:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">A reduction in the frequency of blinking, which causes dry eyes<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Exposure to blue light emitted by devices<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Inappropriate distance from the screen<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Poor lighting in the workspace<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400\">Taken together, these factors increase visual strain and can affect comfort throughout the day.<\/span><\/p>\n<h2><b>Strategies for reducing digital eye strain<\/b><\/h2>\n<p><span style=\"font-weight: 400\">Adopting simple habits can make a significant difference in reducing digital eye strain:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Follow the 20-20-20 rule (every 20 minutes, look at a distant point for 20 seconds)<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Adjust the screen brightness and contrast<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Maintain an appropriate distance from the monitor<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Ensuring correct posture whilst working<\/span><\/li>\n<li style=\"font-weight: 400\"><span style=\"font-weight: 400\">Take regular breaks throughout the day<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400\">These practices help to reduce eye strain and improve performance in everyday tasks.<\/span><\/p>\n<h2><b>The role of glasses in eye protection<\/b><\/h2>\n<p><span style=\"font-weight: 400\">In many cases, wearing suitable glasses can significantly reduce digital eye strain. Lenses with blue light filters and anti-reflective coatings help to minimise the impact of screens and improve visual comfort.<\/span><\/p>\n<p><span style=\"font-weight: 400\">At Centro \u00d3ptico Ib\u00e9rico, you can find solutions tailored to the needs of those who work with digital devices on a daily basis, through specialist advice and ongoing support.<\/span><\/p>\n<p>&nbsp;<\/p>\n<h2><b>The importance of regular visual checks<\/b><\/h2>\n<p><span style=\"font-weight: 400\">Digital eye strain can be exacerbated by uncorrected refractive errors or an out-of-date prescription. It is therefore essential to ensure that your eyesight is properly monitored.<\/span><\/p>\n<p><span style=\"font-weight: 400\">Through a<\/span><a href=\"https:\/\/coi.pt\/en\/\"> <span style=\"font-weight: 400\">optometry consultation<\/span><\/a><span style=\"font-weight: 400\">, you can assess your eyesight, identify signs of eye strain and receive personalised recommendations tailored to your professional context and lifestyle.<\/span><\/p>\n<h2><b>Visual comfort at work and in everyday life<\/b><\/h2>\n<p><span style=\"font-weight: 400\">Ensuring visual comfort in the workplace is essential for maintaining productivity and wellbeing. Small adjustments to your routine and the use of appropriate solutions can significantly reduce the symptoms of digital eye strain.<\/span><\/p>\n<p><span style=\"font-weight: 400\">At Centro \u00d3ptico Ib\u00e9rico, each case is assessed on an individual basis, enabling us to find effective solutions for those who rely on screens on a daily basis.<\/span><\/p>\n<h2><b>Less effort, greater productivity<\/b><\/h2>\n<p><span style=\"font-weight: 400\">The use of digital devices is unavoidable, but their effects can be managed. Reducing digital eye strain is essential for maintaining focus, comfort and quality of life throughout the day.<\/span><\/p>\n<p><span style=\"font-weight: 400\">No<\/span><a href=\"https:\/\/coi.pt\/en\/\"> <span style=\"font-weight: 400\">Centro \u00d3ptico Ib\u00e9rico<\/span><\/a><span style=\"font-weight: 400\">, you can find specialist support to adapt your vision to the demands of the digital world. Take this opportunity to review your visual habits and ensure that your working day is more comfortable and efficient.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>O uso prolongado de computadores, smartphones e tablets tornou-se parte integrante da rotina profissional e pessoal. No entanto, esta exposi\u00e7\u00e3o cont\u00ednua pode ter consequ\u00eancias diretas na sa\u00fade visual, sendo a fadiga ocular digital uma das queixas mais comuns da atualidade. Compreender os efeitos dos ecr\u00e3s nos olhos e adotar medidas preventivas \u00e9 essencial para garantir [&hellip;]<\/p>\n","protected":false},"author":840,"featured_media":6004697,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-6004696","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sem-categoria"],"acf":[],"_links":{"self":[{"href":"https:\/\/coi.pt\/en\/wp-json\/wp\/v2\/posts\/6004696","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/coi.pt\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/coi.pt\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/coi.pt\/en\/wp-json\/wp\/v2\/users\/840"}],"replies":[{"embeddable":true,"href":"https:\/\/coi.pt\/en\/wp-json\/wp\/v2\/comments?post=6004696"}],"version-history":[{"count":2,"href":"https:\/\/coi.pt\/en\/wp-json\/wp\/v2\/posts\/6004696\/revisions"}],"predecessor-version":[{"id":6004699,"href":"https:\/\/coi.pt\/en\/wp-json\/wp\/v2\/posts\/6004696\/revisions\/6004699"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/coi.pt\/en\/wp-json\/wp\/v2\/media\/6004697"}],"wp:attachment":[{"href":"https:\/\/coi.pt\/en\/wp-json\/wp\/v2\/media?parent=6004696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/coi.pt\/en\/wp-json\/wp\/v2\/categories?post=6004696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/coi.pt\/en\/wp-json\/wp\/v2\/tags?post=6004696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}