What are the reasons why children like to blink their eyes?

Generally, a child's frequent blinking may be related to factors such as eye strain, habitual blinking, trichiasis (inward-growing eyelashes), conjunctivitis, or tic disorders. If discomfort occurs, it is recommended to seek medical attention promptly. Specific analyses are as follows:

1. Eye Strain

Prolonged close-up visual tasks or excessive and intensive use of electronic devices in children can lead to eye fatigue, resulting in increased blinking. Parents should reasonably schedule their child’s study time and screen usage, and ensure regular eye relaxation.

2. Habitual Blinking

Habitual blinking refers to repeated contractions of the orbicularis oculi muscle causing involuntary eyelid movements, often triggered by various factors. Children are naturally curious and highly imitative. Frequent blinking may initially stem from imitation or an attempt to attract attention, eventually developing into a habit. Parents can use cognitive behavioral approaches to explain to the child that excessive blinking is inappropriate and help correct this behavior.

3. Trichiasis

Trichiasis is an abnormal condition in which eyelashes grow inward toward the eyeball, commonly seen in children and adolescents. When eyelashes turn inward and rub against the cornea, they cause significant irritation, prompting the child to blink frequently to relieve discomfort. This condition may also be accompanied by tearing and redness. It is advisable to visit a reputable hospital where a doctor can remove the abnormally growing lashes to alleviate eye discomfort.

4. Conjunctivitis

Conjunctivitis is inflammation of the conjunctiva caused by external factors or internal mechanisms. When a child’s ocular surface defenses weaken, they may become infected with pathogenic bacteria, leading to inflammatory reactions and conjunctivitis. The child may blink frequently to relieve discomfort and may also experience symptoms such as tearing and photophobia. Treatment under medical guidance may include medications such as roxithromycin capsules, acyclovir tablets, or tobramycin eye drops.

5. Tic Disorder

Tic disorder is a neurodevelopmental condition characterized by sudden, intermittent, involuntary movements or vocalizations occurring without conscious control. The exact cause of tic disorders is complex and not fully understood. Children with tic disorders may exhibit frequent blinking, along with facial tics or prolonged staring. Under medical supervision, medications such as risperidone tablets, sertraline hydrochloride tablets, or haloperidol tablets may be used for treatment.

In daily life, it is important to maintain good hygiene practices, such as washing hands frequently, avoiding rubbing the eyes, and preventing infections.