What causes a child to constantly blink their eyes?

Jun 14, 2024 Source: Cainiu Health
Disease description:

Recently, I've noticed that my child keeps blinking frequently, especially when reading—the symptom becomes more obvious. What could be causing a child to constantly blink?

Doctor's answer (1)
Dr. Zhou Xiaofeng
Children frequently blinking may be caused by various factors: 1. Eye fatigue: Prolonged use of electronic devices or lack of rest can lead to visual fatigue, resulting in frequent blinking. 2. Foreign body in the eye: The presence of foreign objects such as dust or eyelashes in the eye can irritate the eye and trigger blinking. 3. Eye diseases: Conditions such as conjunctivitis and dry eye syndrome can cause eye discomfort, leading to frequent blinking. Research indicates that conjunctivitis may cause a sensation of a foreign body in the eye, while dry eye syndrome may result in dryness due to insufficient tear production. 4. Tic disorders: Some children may blink frequently due to tic disorders, which may also be accompanied by other symptoms such as shoulder shrugging or facial twitching.