I work with computers all day long. how can i avoid the damage to my sight? i already had to start using glasses to see ok.

Not a problem: It is a common myth that long computer use can damage the eyes. Were it so, I would uproot my ophthalmology office and move across the street from Microsoft. Computer use is tiring, drying mostly but not harmful. I always advise my computer user patients to keep a bottle of lubricating drops next to their work station and apply a drop for any symptom which almost always works.