strabismus correction

Due to congenital or acquired factors, the eyeball is fixed at a certain position and cannot be rotated in any direction, which is called fixed strabismus. According to the direction of the eye position deflection, it can be divided into internal, external, upper and lower fixed strabismus. This disease can only be used to relieve the muscle contraction of contracture and fibrosis, and to strengthen the antagonistic muscle to restore the eyeball to the positive position. Treatment of diseases: fixed strabismus common strabismus Indication Suitable for strabismus in the eyes. Surgical procedure Take the fixed internal oblique as an example. 1. Internal rectus muscle rupture, conjunctival migration and external rectus shortening. (1) According to the method of posterior rectus muscle migration, the internal rectus muscle is completely broken from the end, and the intermuscular membrane and the ligament are controlled. (2) After the conjunctiva and the eyeball fascia are migrated, they are sutured on the sclera at the end of the rectus muscle. (3) to do the external rectus muscle shortening. (4) 2mm outside the limbus with a non-absorbent suture to make a pulling suture stitched to the outer ankle, the eyeball turned to the opposite direction of the strabismus, 5 ~ 7d to remove the suture. (5) suture the bulbar conjunctiva. 2. Internal rectus muscle fracture combined with silicone band iliac margin (1) The internal rectus muscle is broken and the conjunctiva is the same as above. (2) Exposing the distal rectus end with a limbal incision. (3) The external malleolar incision was made 10mm to expose the periosteum of the iliac crest. The periosteum was vertically spaced 5mm apart and cut 4mm in parallel. The periosteal collar was separated from the humerus. The sacral membrane is sneaked to the conjunctival side to make it communicate with the conjunctival incision to form a tunnel. (4) A 4 mm wide strip of silicone gel was passed through the collar and sutured with non-absorbent sutures. Pass the two ends through the conjunctival tunnel, tighten them and use 5-0 non-absorbent sutures, suture them on both sides of the distal rectus end, and then suture the silica gel with the broken ends and suture them on the sclera. Extra strips. (5) suture the conjunctiva and external hemorrhoid wounds.