While computers have no known harmful effects on eyesight, computer users do often complain of eye related symptoms such as eyestrain, headaches, fatigue, dry eyes, and difficulty focusing, These symptoms (Computer Vision Syndrome - CVS) however are caused not by the computer screen itself but rather by the conditions surrounding the computer screen, such as poor lighting or improper placement of computer equipment and computer furniture.
The following things can contribute to eyestrain:
Having to read or use a computer at a fixed, set distance for a long continuous period of time. Even if a person has more than adequate focusing ability, focusing at a set distance continuously can fatigue the lens.
Having to read or work at very close distances. This requires much more focusing and leads to more rapid fatigue.
Using inadequately powered reading glasses, or using an outdated glasses prescription. Working in situations with inadequate lighting, or with glare from overhead lighting.
Having other underlying eye problems, such as ocular allergy or dry eye. Having an imbalance in eye muscle alignment, so that the eyes have to fight to stay fixated on a near object.
Adjust The Equipment
Set the monitor, desk, and chair at comfortable distances and heights. Some of these figures may be obtained in the documentation that came with the computer products. Most users prefer a viewing distance of 20 to 26 inches, but this distance should be between 18 and 28 inches; a little farther away than for reading printed text. The computer screen should be placed slightly below eye level. A good rule of thumb is that the center of the computer screen should be 4 to 9 inches below your eyes, enabling you to look down slightly at your work. Adjust the brightness of the monitor to an intensity that is comfortable to your eyes; not to bright and not to dim. Then adjust the contrast control so that the characters on the monitor and the background so the letters are easily read.
2006-12-17 03:50:47
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answer #1
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answered by Sherri 4
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I've been using computers since '81 but have only been using them full time to make a living since 1994. My eyesight hasn't changed, same prescription.
I could see how it could effect some peoples eyesight, especially using an old CRT monitor for long hours and many years.
I've never seen any peer reviewed medical studies on the subject.
2006-12-18 13:51:23
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answer #2
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answered by lv_consultant 7
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My distance vision is slowly getting worse, although quicker than if I wasn't a computer user. Maintain your annual eye checks and update your prescription eyewear as needed.
2006-12-17 03:46:12
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answer #3
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answered by Levi F 3
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The newest computers actually have a special built in screen to protected your eyes. you can also buy special screens to put over your monitor buy one. sitting down for long periods of time in the same spot is not good for you either you can get bed sores?
2016-05-23 02:00:55
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answer #4
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answered by Anonymous
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When I no longer had a job working at a computer, both eyes improved two clicks on the optometrist's machine.
2006-12-17 03:45:42
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answer #5
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answered by Clown Knows 7
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it affects your vision seriously, so when you start to feel your eyes burning, and reddish, and even headaches, after a long day in front of a computer, that means that your vision is being affected, so prepare yourself for glasses!!!!
2006-12-17 03:42:15
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answer #6
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answered by Abbey Road 6
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