It is not always possible to work back infantile cross-eye. Cock-eye is clinically known as internal strabismus, which is a kind of strabismus. If the age is young, it can be improved by changing the sleeping direction and increasing the range of field of vision; if the age is 18-24 months, it is recommended to have surgical treatment as soon as possible. Inward strabismus refers to the pupil in the middle of the eye is naturally or artificially close towards the middle, which is mainly related to imperfect development, birth abnormality, insufficient control of eye movement center, etc. It will slowly cause certain impact on the infant’s eyesight, and may also seriously affect the beauty of the face. In terms of treatment, small-month-old infants can be improved by changing the sleeping direction and increasing the range of visual field. If surgery is indicated, usually within 2 years of age, surgery is recommended as soon as possible. Infants with esotropia should seek medical treatment and examination in a timely manner to avoid delaying the condition and to target corrective treatment. After medical treatment, it is also necessary to closely observe the infant’s habit of looking at things, pay attention to eye hygiene, and help the infant to undergo corrective treatment, and to conduct regular follow-up examinations to observe the recovery situation.