1, because computer people sit in front of the computer, look at things closer, forcing the eye ciliary muscle in a state of contraction tension, so that the crystal becomes convex to adapt to the near object, the eyes are in a state of long-term tension and not rest will lead to myopia. The excessive visual fatigue will also cause the atrial fluid to become obstructed, which is more likely to lead to glaucoma. At the same time, dry eye, cataracts, corneal ulcers and retinal detachment, etc., is also the long-term use of computers susceptible to eye disease. 2, computer people in addition to more exposure to electromagnetic radiation, the flashing of the computer fluorescent screen also has a strong stimulating effect on the eyes, so that people appear tearing, vision loss, dizziness and other signs of discomfort.