Effect of Extraocular Muscle Surgery on Corneal Topography

Sergio Kwitko; Mark R. Sawusch; Peter J. McDonnell; David Gritz; Hamilton Moreira; David Evensen

doi:10.1001/archopht.1991.01080060137042

Effect of Extraocular Muscle Surgery on Corneal Topography

Sergio Kwitko, Mark R. Sawusch, Peter J. McDonnell, David Gritz, Hamilton Moreira, David Evensen

Research output: Contribution to journal › Article › peer-review

41 Scopus citations

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.

Original language	English (US)
Pages (from-to)	873-878
Number of pages	6
Journal	Archives of ophthalmology
Volume	109
Issue number	6
DOIs	https://doi.org/10.1001/archopht.1991.01080060137042
State	Published - Jun 1991
Externally published	Yes

ASJC Scopus subject areas

Ophthalmology

Access to Document

10.1001/archopht.1991.01080060137042

Cite this

@article{8eee001c84204cac954a236d3fd6350a,

title = "Effect of Extraocular Muscle Surgery on Corneal Topography",

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 = "Sergio Kwitko and Sawusch, {Mark R.} and McDonnell, {Peter J.} and David Gritz and Hamilton Moreira and David Evensen",

year = "1991",

month = jun,

doi = "10.1001/archopht.1991.01080060137042",

language = "English (US)",

volume = "109",

pages = "873--878",

journal = "Archives of ophthalmology",

issn = "0003-9950",

publisher = "American Medical Association",

number = "6",

}

TY - JOUR

T1 - Effect of Extraocular Muscle Surgery on Corneal Topography

AU - Kwitko, Sergio

AU - Sawusch, Mark R.

AU - McDonnell, Peter J.

AU - Gritz, David

AU - Moreira, Hamilton

AU - Evensen, David

PY - 1991/6

Y1 - 1991/6

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=0025905479&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025905479&partnerID=8YFLogxK

U2 - 10.1001/archopht.1991.01080060137042

DO - 10.1001/archopht.1991.01080060137042

M3 - Article

C2 - 2043078

AN - SCOPUS:0025905479

SN - 0003-9950

VL - 109

SP - 873

EP - 878

JO - Archives of ophthalmology

JF - Archives of ophthalmology

IS - 6

ER -

Effect of Extraocular Muscle Surgery on Corneal Topography

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this