Under normal circumstances, the average person blinks 15-20 times per minute. Blinking causes the tear film to be normally distributed on the surface of the eyeball, which can protect the cornea, avoid dryness and prevent dust damage.
There are too many blinks, some are caused by habits, and some are caused by eye muscles or nervous system diseases. The following are the three major causes of frequent blinking.
Frequent blinking
It is generally divided into symptomatic and spontaneous. Symptomatic frequent blinking because of certain eye diseases, such as superficial keratitis, dry eye syndrome, chronic conjunctivitis, trachoma, etc. Spontaneous frequent blinking is due to the eyelid itself, need to be carried out Professional treatment.
2. Non-infectious factors
This is the most common cause. Air pollution, wind and sand, strong light, insufficient lighting, long-term viewing of the screen, lack of sleep, etc., can cause frequent blinking. In addition, refractive error is not corrected and zinc deficiency in the human body, calcium deficiency , is also one of the reasons for frequent blinking.
3. Infectious factors
Due to the incomplete or untreated treatment of acute conjunctivitis, or due to weak toxicity of pathogenic bacteria.
