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Computer Vision Syndrome

Up to 75% of Americans who use Computers are affected by "Computer Vision Syndrome"

Symptoms of Computer Vision Syndrome (CVS) are:

  • Tired eyes
  • Eye strain
  • Headaches
  • Blurred vision
  • Neck & shoulder pain
  • If you're under age 40, eye strain or blurred vision during computer work may be due to an inability of your eyes to remain accurately focused on your screen. Symptoms may also be due to your eyes having trouble changing focus from
  • your keyboard or reading material to your screen and back again for prolonged periods of time. These focusing (accommodation) problems often are associated with CVS.

If you're over age 40, the problem may be due to the onset of presbyopia. Presbyopia is the normal age-related loss of near focusing ability.

Customized computer glasses are prescribed specifically to reduce eye strain and give you the most comfortable vision possible at your computer. Computer glasses differ from regular eyeglasses or reading glasses in a number of ways to optimize your eyesight when viewing your computer screen.

Question/ Answer on Computer Vision Syndrome

Is there a direct correlation between workplace productivity and the proper lens prescription for the computer user?


How often do you blink when on the computer compared to when you are reading printed material?

You blink 5 times less often on the computer than when reading printed material. This can cause dry eyeand blurred vision.

Can CVS affect children?

Yes, as many as 30% of children who use the computer are putting stress on their eyes.

Do our eyes respond differently to a computer image than to printed words?


What is the main reason for CVS?

An inability to focus properly on computer images.

Is the "Big E" vision test the best way to diagnose CVS?

No. CVS can be diagnosed by your Optometrist and proper computer glasses can be prescribed.

Vanessa Kashak, O.D.

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Written for Our Blog on Oct 12, 2014


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