J Korean Ophthalmol Soc.  1987 Jun;28(3):619-622.

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

• Lee JB
• Yun YS

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.

MeSH Terms

Esotropia
Exotropia
Follow-Up Studies
Ocular Motility Disorders
Strabismus*
Ultrasonography*