Generally speaking, if common strabismus in children is not treated in a timely manner, they may lose binocular vision after the age of 12, and even if the strabismus is solved by surgery after this age, it will only have a cosmetic effect. Therefore, strabismus should be treated promptly. However, for children with mild strabismus who cooperate with the examination, the timing of surgery can be decided depending on the function. For non-common strabismus, the timing of surgery is usually performed six months after the onset of the disease.