Source - http://www.cbsnews.com/
By - Amanda Cochran
Category - Attractions In West Miami
Posted By - Inn and Suites In West Miami
By - Amanda Cochran
Category - Attractions In West Miami
Posted By - Inn and Suites In West Miami
Attractions In West Miami |
Do your eyes feel dry? You're not alone. Millions of Americans suffer
from dry eyes, and experts say computers and smartphones are making the
problem worse.
That's because when staring at those
devices, you may be blinking somewhere around 50 percent less often that
you do when looking at other everyday things, says Dr. Christopher
Starr, an associate professor of ophthalmology at Weill Cornell Medical
College. He explained on "CBS This Morning," "Normally, we blink about
20 times per minute. It can drop to eight or 10 times a minute. And when
you're not blinking, the tears that are on your ocular surface just
evaporate. You're not distributing new, healthy, clean tears across the
ocular surface."
Another thing that can contribute to the
dry-eye feeling is the lack of oil being distributed to the eye via
your eyelid. "When we blink, we push out a little bit of oil," Starr
said. "It's critical for healthy tear film. ... When you blink, you put
out a little oil with each blink. So if you're not blinking, you're not
getting the oil, your tears are evaporating and over the hours of a long
workday that leads to significant dry eye."
Symptoms of
dry eye include grittiness, a sandy feeling, a foreign body sensation,
burning, redness, and sometimes tearing, and blurry vision. Star added,
"Vision can (also) fluctuate, so if you have clear vision in the
morning, blurry vision at the end of the day, it's often in relation to
this."
To reduce dry eye symptoms, Starr recommended the
20/20/20 rule: "Every 20 minutes you're on the computer, take a break,
look away at a distant object that's 20 feet away or further for 20
seconds or more. You can put a little sticker on your computer or a
bottle of artificial tears to remind you to do that periodically."
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