Strabismus is a disease that according to clinical experience and current data, has a genetic predisposition or familial predisposition, but there is no pattern of inheritance, and it does not mean that if the parents have strabismus in their eyes, the child will definitely develop strabismus, but this is only a matter of probability. If a child is found to have strabismus, it must be corrected as soon as possible, because if the eyes are in an abnormal position for a long time, it will firstly affect the development of the child’s visual function, and in addition, it will affect the development of the balance of the child’s binocular vision. If it is not corrected in time, even if the strabismus is corrected by surgery in adulthood, it is impossible to normalize the stereoscopic function of both eyes. Therefore, strabismus should be detected and treated as early as possible.