{"id":5350,"date":"2026-02-17T10:40:54","date_gmt":"2026-02-17T10:40:54","guid":{"rendered":"https:\/\/inof.es\/?p=5350"},"modified":"2026-02-17T10:42:49","modified_gmt":"2026-02-17T10:42:49","slug":"key-rules-for-visual-hygiene","status":"publish","type":"post","link":"https:\/\/inof.es\/en\/key-rules-for-visual-hygiene\/","title":{"rendered":"Key Rules for Visual Hygiene"},"content":{"rendered":"<ul>\n<li>20-20-20 Rule: To prevent eye strain, every 20 minutes of close work, rest for 20 seconds by looking at something more than 6 metres away.<\/li>\n<li>Lighting: Use ambient light and a direct work light (flexible lamp) that does not dazzle. If you are right-handed, the light should come from the left; if you are left-handed, from the right.<\/li>\n<li>Distance and Posture: Maintain a working distance equal to the length of your elbow to the first phalanx of your middle finger, approximately 40 cm. Sit with your back straight, feet flat on the floor.<\/li>\n<li>Screens and TV:\n<ul>\n<li>Computer: The screen should be at eye level or slightly below (15\u00b0), at a minimum distance of 45 cm.<\/li>\n<li>TV\/Mobile phones: Avoid screens with the light off, as excessive contrast tires the eye.<\/li>\n<li>Blinking: Force yourself to blink to avoid dry eyes.<\/li>\n<\/ul>\n<\/li>\n<li>Environment: Avoid environments with very strong heating or air conditioning and keep the room ventilated.<\/li>\n<li>Outdoor time: Outdoor activities help relax the accommodation and reduce the risk of myopia progression.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p>Visit your eye care professional at least once a year. <a href=\"http:\/\/www.inof.es\">www.inof.es<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>20-20-20 Rule: To prevent eye strain, every 20 minutes of close work, rest for 20 seconds by looking at something more than 6 metres away. Lighting: Use ambient light and a direct work light (flexible lamp) that does not dazzle. If you are right-handed, the light should come from the left; if you are left-handed,&hellip;<\/p>\n","protected":false},"author":6,"featured_media":5334,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[],"tags":[],"post_series":[],"class_list":["post-5350","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","entry","has-media"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Key Rules for Visual Hygiene - Inof | Centro de investigaci\u00f3n y cirug\u00eda ocular<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/inof.es\/en\/key-rules-for-visual-hygiene\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Key Rules for Visual Hygiene - Inof | Centro de investigaci\u00f3n y cirug\u00eda ocular\" \/>\n<meta property=\"og:description\" content=\"20-20-20 Rule: To prevent eye strain, every 20 minutes of close work, rest for 20 seconds by looking at something more than 6 metres away. 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