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.
“Although we used sophisticated software, it’s easy for others to replicate the effect by setting a timer on their phone, or downloading a reminder app,” said study author James Wolffsohn. He is a professor of optometry at Aston University in Birmingham, in the United Kingdom. “It’s a simple way of reminding yourself to take regular breaks for the good of your eyes.”…