Children always blink, common causes are impingement, conjunctivitis, refractive error, dry eye, etc., need to treat the cause, such as impingement often need to extract the impingement or surgical correction, conjunctivitis, often need to use antibiotic eye drops. Inverted eyelashes cause blinking because the eyelashes irritate the eye, which can be eliminated by removing the eyelashes or surgically correcting the entropion. Conjunctivitis, on the other hand, can cause blinking due to a foreign body sensation in the eye and requires antibiotic drops to eliminate the inflammation, such as levofloxacin drops and tobramycin drops. Refractive error can cause frequent blinking because the child can’t see clearly, which can be corrected by wearing eyeglasses. Dry eye can cause blinking due to dry eyes, which can be treated with artificial tears, such as sodium vitrate eye drops. The patient should go to the ophthalmology department of the hospital in time, and the doctor will diagnose the specific cause through detailed examination, and then can take targeted treatment to eliminate the symptoms.