Result of Strabismus After Graduated Surgery Designed by A-scan Ultrasonography.

Lee, Jong Bok; Yun, Young Soo

Original Article

Journal of the Korean Ophthalmological Society 1987;28(3):619-622.
Published online March 1, 1987.

Result of Strabismus After Graduated Surgery Designed by A-scan Ultrasonography.

Jong Bok Lee, Young Soo Yun

Department of Ophthalmology, College of Medicine, Yonsei University, Seoul, Korea.

사시교정량 결정에 안구의 크기를 도입한 방법에 의한 수술결과

이종복(Jong Bok Lee),윤영수(Young Soo Yun)

Abstract

Of 22 cases of strabismus having surgical operations designed on the basis of A-scan ultrasonography, 19(86%) had less than 10 prism diopters eso-or exodeviation at least 2 months postoperatively; 19 exo-and 3 esodeviations were included in the series. Among 3 cases which had more than 10 prism diopters deviation at final follow up, a true divergence excess type exotropia and a nonaccommodative convergence excess type esotropia were included. With the exception of these 2 cases, 19 among 20 basic tropias(95%) had less than 10 prism diopters deviation. A-scan ultrasonography was done preoperatively to find the diameter and thus the circumference of the globe. This was used with the angle of deviation to estimate the amount of recession and/or resection necessary to correct the deviation. Attention was drawn not to exceed the safe range of recession by considering the oculomotor equator.