What is the reason why children often blink their eyes?

Patient's question:

No

Doctor's answer:

The blinking of a child is a facial nerve reflex that serves to protect the eyes. Under normal circumstances, blinking does not exceed 15 times per minute, but a too rapid frequency is considered abnormal. Through ophthalmological examinations, most children are found to have conditions such as superficial keratitis, conjunctivitis, refractive errors, parasitic diseases, or insufficient sleep.