Baby’s blinking in one eye may be caused by dry eyes or inflammation of the conjunctiva. 1. Dry eyes: If the baby has not rested for a long time, it may lead to eye fatigue, which may lead to frequent blinking, so you should arrange the baby’s work and rest to keep resting. 2. Conjunctivitis: If there is inflammation of the conjunctiva, especially allergic inflammation, it will lead to discomfort and itching in the baby’s eyes, and then frequent blinking will occur. Baby one eye always blinking, there may be other reasons, it is recommended to go to the hospital in time to improve the examination to clarify the cause of the disease, to give targeted treatment or treatment.