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Computers are more and more becoming part of our daily lives,be it our jobs, communication, entertainment or even buying tickets and paying our bills. Some of us spend hours staring at the computer screen and our eyes are exposed to a variety of eye aliments collectively referred to as.
Computer Vision Syndrome
Reports suggest that almost 80% computer users suffer from some form of eye strain.
Computer vision syndrome (cvs)
Effects of Prolonged Computer Use:
Dryness of eyes: A normal person blinks about 16 times ante. In front of the computer screen we tend to stay inuously and the blink rate drops
to as low as bons per minute. This allows more time for tear spellers on and results in dryness of eyes.
Difficulty & focussing the characters:
Unlike prin text which has dense black characters with well-defined edges, characters on a computer screen(pixels) are brightest at the center and diminish in intensity toward their edges. This makes it very difficult for our eyes to maintain focus and remain fixed onto these images.
Eye muscle strain (Asthenopia): Normally
our eye muscles need to contract to maintain focus at any object closer than 20 feet. Average computer working distance is about 18 to 28 inches and this means that our eye muscles are in a prolonged statof contraction or spasm as long as we are focused on the computer screen. This causes the muscles to become fatigued and results in headache and difficulties in shifting focus to other objects. Improper posture: This will result in back, neck and shoulder pains that will worsen the headache of CVS.