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20-20-20 Rule

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20-20-20 rule

The 20-20-20 rule is an easy-to-remember guideline to help protect your eyes during long periods of close work on screens. It says that every 20 minutes you should look at something about 20 feet away for at least 20 seconds. That short break allows the eye’s focusing muscles to relax and helps your eyes reset from the constant near focus of a screen. Staring closely for long stretches reduces blinking and can cause dryness, soreness, and blurred vision, so the rule helps reduce those symptoms. It’s not a medical cure but a practical habit that lowers the chance of headaches and discomfort linked to digital eye strain. You can use a timer, an app, or a simple routine cue to remember it. Combining this habit with good lighting, proper screen position, and conscious blinking makes it more effective. If symptoms persist despite following the rule, a visit to an eye care professional can identify any underlying issues.

20 20 20 Rule | Visual Field Test