If you see a co-worker covering his eyes with his hands, don't assume he's having a meltdown. He may be practicing ergonomics. In fact, eye strain is just one of many occupational hazards for computer workers.

Constant computer users also could experience low back pain, elbow discomfort and a painful hand and wrist condition called carpal tunnel syndrome.

Setting up your workstation properly may be the single easiest way to prevent injuries, according to HealthyComputing.com. The site offers suggestions for making your office space ergonomic, such as the best ways to position a keyboard, computer mouse and telephone.

After you've created a pain-free office, you may want to consider other advice from SafeComputingTips.com:

•Take 1- to 2-minute stretch breaks every 20 to 30 minutes. After each hour of work, take a break or change tasks for at least 5 to 10 minutes. Try to get away from the computer during lunch breaks.

•Avoid eye fatigue by resting and refocusing your eyes periodically. Look away from the monitor and focus on something in the distance.

•Rest your eyes by covering them with your palms for 10 to 15 seconds.

•Use correct posture when working. Keep moving as much as possible.

Elsa K. Simcik