How many hours do I need to spend on the computer before I ruin my eyesight?
347391
You wouldn't ruin your eyesight for years and years. Modern computer screens are low-radiating.\nThat's just something parents say. There are other reasons why they don't want you infornt of the PC all day....\n\nAnd Dar, you also asked about porn, so I see a connection here. If you watch porn on the PC - I can see why they don't want you there all day, right?
538403
at least 3 hours\n\n1.5 hours is horrible.. dont even expect to TRY to run windows vista with that lousy battery guzzling laptop
1008711
Off and on throughout the day...maybe 3 hours? In any case, too damned much!
315949
Hmmm well take care yours eye well that's the most important, avoid watcihng/playing or stond TV/Monitor for long peiod of time, when proper eye protection during certain harzard.  Avoid fatty food, fat = increase blindness.
389206
Of course the exact number depends on the person and on the photon frequency (light color). An average figure of the human eye sensitivity in the visible spectrum is 60 photons received within an interval of 0.15 seconds (that is the retina integration time).
94812
Mostly 3 hours per day, and yeah i know that i shouldn't spend a lot of time on the pc at home, especially that i spend the whole 8 hours on the pc at work,, it's affecting my eyes.
529511
1. see to it that your monitor screen has that shield that protects your eyes from harmful rays\n2. wear powered glasses if your eyes ae week o elsy wear plain glasses...it will protect your eyes from watering\n3. see to it that your chair is of appropriate height to that of your coputer\n4. the distance betwwn your eyes and the computer should be atleast 70cm\ni guess thats all about it.....although you can also refer to an eye specialist for proper details
554579
you should wear it  as a maximum time 7 hours a day .. this live for about a year or a year and half  \nand don't try to wear the weekly or the monthly one\nsome eyes are very sensetive as can't accept it \nkeep visiting your doctor to be safe\n          best wishes
512888
take plenty of eye breaks before they get too tired. just close your eyes for a few minutes and let them rest and pick something in the office you can look at for a few seconds to keep from staring at the screen all the time buy some natural tears eye drops or some other kind of eye drops that sooth the eyes, only use these by the directions on the box. Read the eyedrop boxes and find the one that is for soothing tired eyes
533958
noo loool.. but ur vision can worsen.. to prevent that, every 10 minutes move ur eyes from the screen for about a minute and look at somthg distant.. so ur eye muscles will not get tired.. and u wont go blind lol;)
13749
The effects of sitting in front a PC monitor for prolonged time frames is pretty drawn out.  You can in effect stay in front of one for 24 hours, assuming you take breaks every few hours for at least 10  minutes to give your eyes a rest.\n\nI would reccomend no more than 12 hours per day in front of the monitor.  And if you do more, at least take a break every few hours for 10 minutes a time and focus on more 'lit' objects, to give your eyes a rest.  \n\nDoctors reccomend no more than 12, and that's a good thing to stick with.
1113701
get a lcd. a crt makes your eyes refocus about 20k times an hour not good for you lcd is less as its does not refresh or flicker many times a minute
272734
Rest you eyes. Less computer time. More time meditating.
1017036
Yes they can reduce the brightness and contrast level and set it to 40-50% of the maximum. Initialy you will not be comfertable but after few hours your eyes will adjust to it.
596229
Hi there,\n\nThe viewing distance from the screen to the eyes should be seventeen to twenty-six inches. \n\nSome eye relaxation exercises would also help.\n\n:)
186363
No. About an hour or two and my eyes go all la-la.
133865
Any type of screen will worsen your eye unless you are careful to give your eyes a break.\nThere are a few tricks you can do to help alleviate problems.\nThe quickest way is to focus on different objects. If you are lucky enough to have an office with a view. Look outside and focus on objects far away every few minutes. (Just enough to focus on for a few seconds to let your eyes 'STRETCH')\nKeep brightness down, too. Staring at a good monitor, you rarely need to crank up the brightness on it to read accurately.\nAbove all. Pay attention to your body. If you start having trouble focusing...or getting headaches, it is time to walk away and get some distance from the cube.