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A 27-year-old member asked:

Will blinking once per 2-4 seconds prevent eye strain when i'm on the computer for long hours?

3 doctor answers5 doctors weighed in
Dr. David Kira
Ophthalmology 23 years experience
Maybe: Blinking helps to distribute tears on the eye surface and may help you to feel better. Eyestrain with computer use most often arises from blur and dryness. Optimizing your glasses and use of artificial tears are good bets. Also the 20/20 rule works: look at something 20 feet away for 20 seconds every 20 minutes.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Andrew Shatz
Ophthalmology 28 years experience
Possibly: But this is difficult to maintain. We normally blink every 10-15 seconds, so it would be hard (and straining) to force yourself to blink 5 times more often. You may be better off using artificial tears every 30-60 minutes, stare off in the distance a few times every hour and consider an eye examination to rule out the need for computer glasses.
Created for people with ongoing healthcare needs but benefits everyone.
Dr. Maritza Baez
Family Medicine 19 years experience
Maybe: Our eyes are designed to see things in 3d. When you look at a computer/book etc for a long time (a 2d surface) you can strain your eyes or get dry eyes. Every 20 minutes rest your eyes for 20 seconds by looking at something at least 20 feet away.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Nov 26, 2013
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