"Asking yourself just a few question may help you determine if your computer workstation utilizes correct desk ergonomics.
1. Is the top of your monitor at, or just below, your eye level?
2. Are your head, neck and shoulders, in line with the rest of your torso?
3. Are your elbows well supported, and close to your body?
4. Do you have proper lumbar support for your lower back?
5. Are your wrists and hands in line with your forearm?
6. Do you hold your shoulders back, instead of turned forward?
7. Are your thighs and hips supported, and parallel to the floor?
8. Do your feet rest flat on the floor? If not, do they have adequate support from a footrest?
9. Can you easily access reference materials and equipment at your workstation?
These may sound like very basic concepts. Although OSHA, the Occupational Safety and Health Administration, doesn't think so - and they publish guidelines similar to these as their basis for good desk ergonomics." (Continued via back-exercise-and-pain-relief.com) [Ergonomics Resources]