This Article  • References  • Full text PDF  • Reply to article  • Send to a friend  • Save in My Folder  • Save to citation manager  • Permissions  Citing Articles  • Citation map  • Citing articles on HighWire  • Contact me when this article is cited  Related Content  • Similar articles in this journal  Social Bookmarking   What's this?

Sergio Kwitko, MD; Mark R. Sawusch, MD; Peter J. McDonnell, MD; David C. Gritz, MD; Hamilton Moreira, MD; David Evensen, PhD, PE

Arch Ophthalmol. 1991;109(6):873-878.

Abstract
• 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 supero-temporal 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.

Author Affiliations
From the Department of Ophthalmology, University of Southern California School of Medicine, and the Doheny Eye Institute, Los Angeles, Calif.

Footnotes
Accepted for publication February 1, 1991.

Reprint requests to the Doheny Eye Institute, 1355 San Pablo St, Los Angeles, CA 90033 (Dr McDonnell).

CiteULike    Connotea    Del.icio.us    Digg    Reddit    Technorati     What's this?

THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES

The topography of the central and peripheral cornea.
Read et al.
IOVS 2006;47:1404-1415.
ABSTRACT | FULL TEXT