EFFECT OF EXTRAOCULAR-MUSCLE SURGERY ON CORNEAL TOPOGRAPHY

被引：35
|
作者：
KWITKO, S [1 ]
SAWUSCH, MR [1 ]
MCDONNELL, PJ [1 ]
GRITZ, DC [1 ]
MOREIRA, H [1 ]
EVENSEN, D [1 ]
机构：
[1] UNIV SO CALIF,DEPT OPHTHALMOL,LOS ANGELES,CA 90033
来源：
ARCHIVES OF OPHTHALMOLOGY | 1991年 / 109卷 / 06期
关键词：
D O I：
10.1001/archopht.1991.01080060137042
中图分类号：
R77 [眼科学];
学科分类号：
100212 ;
摘要：
A computerized videokeratoscopy system was used to evaluate changes in corneal topography after muscle surgery in 36 eyes of 18 rabbits. Topographic analysis revealed a significant flattening of the cornea in the superior and superotemporal octants after superior rectus recession (mean +/- SE, -1.78 +/- 0.16 diopters) compared with control eyes undergoing a sham procedure (-0.17 +/- 0.18 D; P < .05). Excision of all rectus muscles caused a generalized corneal flattening (-1.42 +/- 0.13 D; P < .001). A computerized, finite element model of the globe, including the rectus muscles, demonstrated corneal deformation as a result of extraocular muscle tension; recession of an extraocular muscle in this model caused corneal flattening in the quadrant of the recessed muscle. These data suggest that corneal topography is affected by extraocular muscle tension, corroborating clinical reports of refractive change after strabismus surgery.
引用
收藏
页码：873 / 878
页数：6
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