What's wrong with blinking?

Blinking is a normal physiological activity of human beings. If the number of times is more than 15 times, it is considered to be caused by other reasons. 1. Consider dry eye, generally less tear secretion, cornea is vulnerable to blinking caused by friction. 2, due to allergic conjunctivitis, often occurs in spring and summer, eye discomfort caused by allergens, will cause blinking, 3, infectious diseases, children may not pay attention to hand hygiene, eyes show infection, so cause blinking, 4, due to myopia, hyperopia, astigmatism and other refractive errors, caused by regulatory spasms. 5, habitual blinking, without any pathological changes, slowly correct can be. 6, because of the twitching blink, and the environment and learning pressure, after rest can be relieved.