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Course: Chorioretinal Scars From Scleral Perforation During Prior Strabismus Surgery

CME Credits: 1.00

Released: 2022-04-21

A 15-year-old boy with a history of strabismus surgery on the left eye for exotropia at 12 years of age presented with a chief complaint of recurrent exotropia. On examination, visual acuity was 20/15 OD and 20/50 OS, his baseline acuity. On dilated examination, he was found to have 2 midperipheral linear chorioretinal scars in the left eye (). The appearance and location of the scars seemed consistent with scleral perforation from deep suture passes during strabismus surgery. The V-shape and midperipheral location suggest that recession of the lateral rectus muscle with direct scleral attachment was performed using the crossed-swords muscle-fixation technique. The reported incidence of chorioretinal scars owing to strabismus surgery has decreased since the introduction of spatulated needles in 1962, the increased use of magnifying loupes, the wider adoption of hang-back recessions (which avoid passing suture through thin sclera), and a greater number of fellowship-trained strabismus surgeons., Risk factors include young patient age, axial elongation of the eye, prior strabismus surgery, and surgeon inexperience.- The patient was asymptomatic. Given the chronic appearance of the chorioretinal scars, no intervention was performed. He subsequently underwent resection of the left medial rectus muscle without complication.


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