What can I do to prevent computer-use eyestrain or counter its effects?
The American Academy of Ophthalmology says staring at your computer screen, smartphone or other digital devices for long periods won't cause permanent eye damage, but your eyes may feel dry and tired.
Under normal circumstances, we blink about 18 times a minute, but studies show we blink half that amount while using computers and other digital screen devices, the academy says.
So here's what the academy recommends:
• Post a note that says "Blink!" on the computer to remind yourself to blink.
• Every 20 minutes, shift your eyes to look at an object at least 20 feet away, for at least 20 seconds: the "20-20-20" rule.
• Use artificial tears to refresh your eyes when they feel dry.
• Take regular breaks when working; try to get enough sleep.