The transition period for blinking in 2-year-old children depends on the cause of blinking, the severity of the condition, and individual factors, and cannot be generalized. First of all, it should be clear that blinking is a normal physiological state and that blinking allows for the redistribution of tears on the corneal surface and has a protective effect on the cornea. If a two-year-old child has frequent blinking, it is mainly considered to be caused by eye inflammation, difficulty seeing, or twitching. If the patient’s frequent blinking is caused by inflammation of the eye, commonly due to mydriasis, chalazion, or even conjunctivitis or keratitis, the blinking can be eliminated with symptomatic treatment. In the case of frequent blinking caused by childhood tics, prompt treatment is recommended, and it usually takes three months or more for the treatment to resolve. Therefore, when a two-year-old child has frequent blinking, it is recommended that parents take him or her to a regular hospital ophthalmology clinic in a timely manner to clarify the cause and provide symptomatic treatment.