Blinking is a common physiological phenomenon. Generally speaking, the frequency of blinking is relatively high, about 20 times per minute15. Blinking can moisturize the cornea, prevent some foreign bodies from entering the eyes, and effectively restore visual fatigue.

Blinking is also called blink reflex. Frequent blinking becomes abnormal blink reflex.

Children blink too much or too frequently, which is more common in children aged 2- 12. It is called abnormal blink syndrome in medicine.

The main performance is paroxysmal irregular blinking, sometimes good and sometimes bad. Many children can't express clearly what's wrong with their eyes, but they just can't help blinking. Parents are often confused and worried about their children's eye health.

Blink syndrome is caused by congenital trigeminal nerve and ocular nerve center abnormality. Frequent blinking is a relatively complicated symptom, which involves many factors such as local eye health and children's psychology, and is not just a "bad habit".

In either case, if the child's symptoms can't be alleviated, he should go to the hospital to find out the cause of frequent blinking and treat the symptoms.

Mild symptoms do not need treatment, and severe symptoms can be treated by surgery. If not intervened in time, habitual blinking may occur, which will have a long-term impact on children's physical and mental health.