A child’s constant blinking and rolling of the eyeballs may be caused by inverted eyelashes, conjunctivitis, and Tourette’s syndrome in children. 1. Inverted eyelashes: Inverted eyelashes can rub the cornea backward, causing symptoms such as eye pain, tearing and foreign body sensation, etc. The child may show blinking and rolling of the eyes to reduce the friction of the inverted eyelashes on the eyeballs. 2. Conjunctivitis: Bacterial, viral or chlamydial infections of the conjunctiva or contact with allergens may cause conjunctivitis in children, resulting in increased eye secretions, itchy eyes, foreign body sensation and other symptoms, which may be manifested by the child’s blinking and rolling of the eyeballs all the time. 3. Tourette’s syndrome in children: Tourette’s syndrome in children is characterized by involuntary and stereotyped movements, and children may have frequent blinking and eye rolling. The child always blinks and rolls his eyes should go to the hospital in time, complete the examination, clear the cause of the disease and then carry out targeted treatment.