Eye strain? Practice the 20-20-20 rule
Staring at a computer screen endlessly can lead to dry, irritated, tired eyes and headaches.
But there’s a quick fix. Just look away from the screen every 20
minutes. Do this for at least 20 seconds, and look about 20 feet in the distance.
Experts have suggested the 20-20-20 rule for a long time. Now, researchers have validated its usefulness in a study that used special software to monitor participants’ gaze for two weeks.
At least half of the people who sit in front of computers all day have some form of digital eye strain, the researchers said. That may be because humans typically blink about 15 times a minute, but when looking at a screen that drops by about half.
Spending just 20 seconds focusing elsewhere is long enough for the eyes to relax and reduce the strain.
Source: HealthDay News
