These problems usually can be corrected by adjusting the physical and environmental setting where the computer users work. For example, work stations and lighting can and should be arranged to avoid direct and reflected glare anywhere in the field of sight, from the display screen, or surrounding surfaces.

You also can reduce eyestrain by taking vision breaks, which may include exercises to relax eye muscles after each hour or so of operating a computer. Changing focus is another way to give eye muscles a chance to relax. You only need to glance across the room, or out the window, from time to time and look at an object at least 20 feet away. Other eye exercises may include rolling or blinking the eyes, or closing them tightly for a few seconds.

Inadequate vision can strain your posture as well as eyes -- have your eyes checked annually, you may need special glasses

You can reduce eyestrain by taking vision breaks, which may include exercises to relax eye muscles after each hour or so of operating a computer. Changing focus is another way to give eye muscles a chance to relax. You only need to glance across the room, or out the window, from time to time and look at an object at least 20 feet away. Other eye exercises may include rolling or blinking the eyes, or closing them tightly for a few seconds.

Inadequate vision can strain your posture as well as eyes -- have your eyes checked annually, you may need special glasses.

Computer visual stress may underlie many direct and indirect symptoms. Eyestrain is a common direct symptom, while the need for shifts in posture and muscular strain resulting from poorly arranged work stations cause eye problems indirectly and other physical problems directly.

The palming exercise will teach you to relax your eyes, which in turn will bring healthy energy to your eyes.

First, rub your hands together until they feel warm (about 15 to 20 seconds). Then place your cupped hands over your closed eyes, being careful not to touch your eyes with the palms of your hands. The fingers of each hand should overlap and rest gently on the center of your forehead. Don't create any unnecessary pressure on your face. If your arms get tired, rest your elbows on a table.

Sit quietly for one to two minutes with your hands over your eyes. The more relaxed you become, the blacker the darkness you will see with your eyes closed.