There is no set age for pediatric strabismus surgery. The exact timing of surgery is mainly based on the age of onset, the persistence of the strabismus, and the frequency of onset. 1. Congenital strabismus: Influenced by inborn genetic factors or developmental status, congenital strabismus usually develops within 6 months after birth, and the optimal time for surgery is around 2 years old, and if the condition is mild, surgery can be considered at the age of 6~8 years old. 2. Acquired strabismus: Acquired strabismus has a late onset, and if the onset is infrequent, it can be continuously observed and corrected by wearing glasses. If the onset is more frequent, or even causes other complications, then timely surgery is needed. The surgery time for pediatric strabismus is not fixed, once found pediatric strabismus, should go to the professional eye hospital in time, and timely treatment by reasonable way.