Many people spend a great number of hours working on their computers; some because their work is done on a computer, and some because they enjoy relaxing with a computer. Both groups would benefit from observing the proper, healthy use of computers.
PREVENT EYE STRAIN
The picture you see on your computer screen is actually going on and off 25 to 80 times a second, and your eye's (and brain's) natural vision retention smooths this flickering out so that it appears to be always on. But this is an unnatural image, and after extended viewing, you may get eye strain, headaches and vision anomalies. To help your eyes: every 15 minutes, lift your eyes off the screen and stare at a distant object - out of the window, to the end of the passage, or the most distant object you can find. A dark green object is the best colour to stare at. By staring at a distant object, your eye muscles can relax, as they don't have to pull the eyes into focus, where both pupils are angled in towards the centre, but instead your pupils are pointing out in almost parallel lines of vision. Dark green is a low glare, relaxing colour.
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