In the following cases of congenital strabismus, strabismus correction surgery should be considered first: 1. For strabismus occurring in the neonatal period, early surgery should be actively pursued, and it is appropriate to complete the surgery within 1~1.5 weeks of age. Early surgery for neonatal strabismus is of great significance for establishing binocular vision and preventing amblyopia. If the strabismus occurs within 1~3 years of age, if the strabismus remains after wearing corrective glasses (partially adjusted strabismus), surgery can be considered to correct the non-refractive part of the strabismus, which is conducive to the treatment of amblyopia in children and the soundness and perfection of binocular vision function. 3.Strabismus occurring above the age of 3 should first be treated after amblyopia training or treatment, vision to restore normal, but wearing corrective glasses still does not change the eye position, can consider surgery to correct, conducive to the consolidation of visual function, conducive to the establishment and perfection of binocular visual function. 4, for amblyopia training treatment, after the recovery of binocular vision better alternating internal and external strabismus, should be timely surgical correction. It helps to establish and perfect binocular visual function.