Journal of the Korean Ophthalmological Society 1991;32(3):307-311.
Published online March 1, 1991.
The Effect of 0cclusion in Intermittent Exotropia.
Yong Han Jin, Joon Hong Son
Department of Ophthalmology, Ulsan University College of Medicine, Asan Medical Center, Seoul, Korea.
간헐성 외사시에서의 가림법의 효과
진용한(Yong Han Jin),손준홍(Joon Hong Son)
Abstract
Occlusion therapy has been reported to improve the motor phase and sensory phase of exodeviations. We performed occlusion on the preferred eye in intermittent exotropia for three hours a day. Average follow-up time was 15.8 weeks. The frequency of tropic status of exodeviation was decreased in 21 cases(70%). In two cases intermitent pattern was changed to exophoria, and in one case, to exotopia. The size of the deviation angle was changed from 28.93 +/- 7.6 prism diopter(PD) to 24.03 +/- 7.9 PD(p<0.01). In 13 cases(43.3%) the size of the deviation angle decreased more than 6 PD, increased more than 6 PD in one case(3.3%), and in 16 cases(53.3%) the size of deviation angle showed no change. The preference pattern changed from monocular to alternating type in 5 cases. Stereopsis improved in 24% of the cases and did not deteriorate in Others.
Key Words: exotropia;intermittent exotropia;occlusion


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