For partial accommodative esotropia, those who still have 1.2δ after wearing glasses for 3~6 months are the surgical objects. The operation principle is to determine the operation according to AC/A ratio, fusion force and inclination angle. However, the operation must be based on the number of internal inclination measured by wearing fully corrected hyperopia. For example, if the AC/A ratio is high and the fusion force is low, it is necessary to follow the inner rectus muscle of both eyes and shorten the outer rectus muscle of both eyes. Unilateral esotropia was treated with medial rectus recession and lateral rectus shortening. For patients with large esotropia, because of convergence function, the combined operation of shortening the lateral rectus muscle and anterior rectus muscle is mainly used, except for the posterior rectus muscle of both eyes of 5 ~ 6 mm, which can generally correct 70 ~ 90 δ degrees.

For intermittent exotropia and persistent exotropia, surgical methods are selected according to three types of exotropia: abduction-enhanced, convergence-deficient and basic. The abductor muscle is too strong to keep up with the external rectus muscle of both eyes, and the internal rectus muscle is shortened for the insufficient part. Shortening of medial rectus muscle of both eyes was performed for deficiency type, and shortening of lateral rectus muscle was performed for deficiency type. The basic type is generally unilateral asymmetric surgery.

For A-V strabismus, while correcting horizontal strabismus, the medial rectus and lateral rectus are vertically displaced, the medial rectus is displaced to the closed end of A-V sign, and the lateral rectus is displaced to the open end of A-V sign. The up-and-down displacement is determined according to the size of A-V mark, which is generally 5 mm ~10 mm. ..

The purpose of congenital superior oblique palsy is to correct the compensatory head position. If the inferior oblique muscle is overactive, it will weaken. Paralysis of the external rectus muscle is a disciple of the internal rectus muscle, and the external rectus muscle is ligated with the upper and lower muscles. For strabismus, the superior rectus muscle is used as the posterior muscle. If the disciple after a rectus muscle is not corrected enough, it is necessary to do direct antagonistic muscle strengthening.