At various timed intervals, objects appear, leading the eyes around the screen. Shoulder, arm, and hand stretches . Outside light competes with the monitor screen. If the monitor faces a window, shut the blinds or move the monitor away from the windows or other sources of bright light. Reflect light away from your eyes.
Glare is a problem when light bouncing off the monitor strikes the eyes.
If possible, tilt the monitor if it is reflecting overhead light. In schools, computer labs require less area illumination than a typical classroom. Upper body exercises. Neck and Back Pain Neck and back pain are common complaints. The cause is usually poor posture, which decreases blood flow to certain muscles.