Avaliação da acuidade visual e da ceratometria após a cirurgia do pterígio

Avaliação da acuidade visual e da ceratometria após a cirurgia do pterígio


Cristina Garrido,
Ricardo Chaves Carvalho,
Theodomiro Garrido Neto,
Luiz Magalhães,
Jacob Cohen,
Marcelo Cunha,
Mauro Campos


Arquivos Brasileiros de Oftalmologia

versão impressa ISSN 0004-2749versão On-line ISSN 1678-2925

Arq. Bras. Oftalmol. vol.59 no.6 São Paulo dez. 1996


We evaluated visual acuity and keratometry variations in twenty one patients that underwent surgery for pterygium removal. Measurements were performed preoperative, 1 and 3 months after surgery.

Uncorrected visual acuity improved in 16 (76,2%) patients. Seventeen (81%) patients presented significant reduction of corneal astigmatism.

Further studies are necessary to better understand the effects of pterygium on visual acuity.

Key words: Visual Acuity; Keratometry; Pterygium Surgery; Astigmatism


1 KAUFMANN, H. E.; BARRON, B. A.; McDONALD, M. B.; WALTMAN, S. R. - The Cornea 1a ed. New York, Churchill Editora, 1988, p. 952,.
2 DUKE-ELDER, S. - Diseases of the outer eye. In: System of Ophthalmology Series (Vol. 8, part 1). St. Louis, CV Mosby, 1965.
3 CAMERON, M. E. - Pterygium throughout the world. Springfield, Charles C. Thomas, 1965, p.40-42.
4 HILGERS, J. H. C. - Pterygium: Its incidence, heredity and etiology Am. J. Ophthalmol., 50: 635-643, 1960.
5 TAYLOR, H. R.; WEST, S. K.; ROSENTHAL, F. S.; MUNOZ, B.; NEWLAND, H. S.; EMMETT, E. A. - Corneal changes associated with chronic UV irradiation. Arch. Ophthalmol. 107 (10): 1481-4, 1989.
6 DUNNE, M. C. M. & BARNES, D. A. - Modelling oblique astigmatism in eyes with known peripheral refraction and optical dimensions. Ophthalmic. Physiol Opt. 10: 46-8, 1990.
7 HILL, J. C. & MASKE, R. - Pathogenesis of pterygium. Eye, 3(2): 218-26, 1989.
8 OLDENBURG, J. B.; GARBUS, J.; McDONNELL, J. M.; McDONNELL, P. J. - Conjuntival Ptergia Mechanism of corneal topographic changes. Cornea, 9(3): 200-4, 1990.
9 SIEGEL, S. - Estadística no Parametrica, Ed. Trillas, México, 1975, p.346.
10 HOLLANDER, M. WOLFE, D. A. - Nonparametric Statistical Methods, John Wiley & Sons, New York, 1973, p.503.