The child’s eyes keep blinking, it may be overuse of eyes, allergic conjunctivitis, tic disorders, etc.. 1. Excessive eye use: If the child often looks at electronic products, such as often looking at the cell phone, computer screen, etc., it will lead to eye muscle fatigue over time, and blinking occurs all the time. 2. Allergic conjunctivitis: Allergic conjunctivitis can also appear to blink all the time, accompanied by red, swollen and itchy eyes. It is mainly because the conjunctiva is easily exposed to allergens and produces an immune response, which leads to blinking all the time. 3. Tourette’s syndrome: Tourette’s syndrome occurs in children and adolescents, and is a neuropsychiatric disorder in which patients experience frequent blinking, shrugging of the shoulders, and nodding of the head. If your child’s eyes keep blinking, you must bring your child to the hospital in time, and actively treat the cause of the disease to avoid delaying the condition.