In fact, dry eye is caused by a variety of factors, previously occurred in the elderly. In recent years, the number of patients with dry eye disease has increased dramatically, mostly in white-collar workers. Experts remind that dry eye disease should pay attention to eye movement.
Experts say that under normal circumstances, the lacrimal glands of the eyes will secrete tears to wet the eyes. But if you focus too much on the computer for a long time, your eyes will blink less because of over concentration. Blinking is good for lacrimal gland to secrete tears, for even distribution of tear film on the surface of cornea, and for keeping the surface of eyeball clean and moist. Blink less, secretion of tears less, the eyeball will appear dry and uncomfortable because of the lack of humidity. If long time in the air-conditioned room, low humidity, air circulation, it will accelerate the evaporation of tears, thus inducing dry eye.
For some office workers, because they have to face the computer operation every day, the number of blinks is greatly reduced when they are highly focused, and the secretion of tears is also reduced. In addition to the radiation of screen light, the cornea moistened by tears usually becomes dry, which will cause eye pain and foreign body feeling. The general eye drops, often contain preservatives, antibiotics, not only can not change the symptoms of reduced tear secretion, such as long-term use will cause certain damage to the eyes.
The manifestations of dry eye mainly include dry eyes, itching, eye fatigue, foreign body sensation, etc. Experts said that usually these symptoms are not serious, people often do not care.