Computer use may tire the eye, especially if done for long periods of time, but will not damage the
eye. My suggestions would be to see an
Eye MD ophthalmologist to see if your eyes are healthy and if you need glasses.
Also when using the computer about every 15 minutes look away from the screen and out the window or down the hall and refocus on a distant object. Then blink you eyelids hard 5-6 times. This rests/stretches the focus muscle of the eye and moisturizes the cornea.