In addition to affecting the aesthetic appearance, strabismus can also cause adverse functional consequences. If treated promptly during the period of visual development (before the age of 12), in addition to correcting the skew of the eye, the strabismus can also disappear, the curvature of the spine and facial development can be adjusted, and the obstacle to the development of stereo vision can be removed. If treatment is carried out after the development of visual acuity is mature, it is only bar, can correct the skew of the eye, the visual acuity of the strabismic eye will not improve, and can not obtain the function of binocular monocularity, and has a certain impact on the choice of work and occupation. Some strabismus is related to farsightedness and astigmatism, and the strabismus can disappear completely or be reduced after wearing glasses with experience. There are also some strabismus that do not have obvious hyperopia or astigmatism, and wearing glasses will not help to correct the eye position, then surgery should be performed in time to correct it. If the strabismus has amblyopia, amblyopia should be treated first, and surgery should be done when the vision of both eyes is balanced, which can consolidate the effect of surgery and keep the position of both eyes normal. The design of strabismus surgery is the key to the success of the surgery. It is normal for the eye position to remain slightly skewed or slightly overcorrected after strabismus surgery. The ophthalmologist will readjust the glasses according to the changes in visual acuity and eye position after surgery to accommodate the postoperative changes and consolidate the surgical results. Some children may have significant postoperative residual strabismus or recurrence of strabismus after several years, requiring a second surgical procedure.