How can sitting for a long time in front of the computer affect your sight?

Answer 1

there is a simple reason as to why your eye sight can be affected if you're working on a computer for several hours non-stop. It has to do with the fact that when you are working on a computer, your eyes are focused to one point of distance for a long time, and not being given the normal eye exercise of focusing on many different points of distance consistently. This lack of focusing and refocusing action causes the eye to strain, and eventually begin to weaken the focusing ability of the eye. That is the simple way to explain how your eyes are affected by long-term computer use.
The best way to counter this effect on the eyes is to make it a habit of looking away from the computer screen every 5 or 10 minutes, and focus on different distance points.....for instance, looking out of a window at a passing car, or a bird flying by. You can also look at the clock on the wall.....or at the floor. In this way, you will ensure that your eyes are constantly focusing back and forth....and you might avoid long-term or permanent damage to your sight.
Best of Luck!

Answer 2

In the U.K the offical medical line is No , no long term damage can be done to eyes via a computer screen. (not including short term things like eyestrain) How ever there seems to be a huge amount of people who say otherwise based on personal experience. The reason I know about this is my girlfriends eye sight went rapidly down hill after she started working with computers all day, she insisted it was her computer but her company were not liable for eye tests or anything because officially computers do not harm eye sight.

Answer 3

People don't blink as often as normal, when staring at the screen. Your eyes get dry and irritated, and if you are prone to conjunctivitis this can be a real problem.
I have heard from an opthalmologist that the light from the screen can actually damage the pigment of the eye after many months overuse...whether or not this is true, I can't tell you. (Sounds a bit odd to me.)
Doing any fixed, close work for long periods of time damages the eyes; add the luminous, blinking screen (you don't percieve it, but it blinks, like a flourescent bulb does) and you've got a recipe for poor eyesight longterm.
But we just can't give it up, can we?

Answer 4

I dont know how it does it .
but before i got my computer, i only needed glasses for reading ,
then after 5-6 years of being on the computer around 4 hours a day, i need to wear glasses constantly, and i think my prescription is getting worse, :(
try and give your eyes a rest every now an then.

Answer 5

UV rays damage you eyes, however you also need to protect other parts of you body such as you wrists and neck. Make sure you sit comfortable with proper posture, Don't sit for very long periods of time.....break at least once an hour. And make sure that you are comfortable typing.

Answer 6

you can used the protective glass shield or up to date glasses but as far as sitting in front of a computer for a long period of time it is not harmful

Answer 7

Computer screens emit UV rays, which can damage your eyes. I wear glasses with a special UV protection coating on them to help prevent this damage.

Answer 8

Staring at a screen all day is not good for anyone ,If you own a digital camera try looking at you screen with it as though you are going to take a picture of it you will be surprised at what you see .

Answer 9

It shouldnt if you take frequent breaks, have your monitor and keyboard correctly placed. I am often on the PC for up to 10 hours a day and have no ill effects;

Answer 10

I do it all day and my eyes are fine but appently it can cause eye strain which is quite painful, try to get up and do something else every 45 minutes,