In:
Journal of Refractive Surgery, SLACK, Inc., Vol. 5, No. 2 ( 1989-03), p. 75-81
Abstract:
ABSTRACT: In the Prospective Evaluation of Radial Keratotomy (PERK) study, the symmetry of refractive and visual acuity outcome was analyzed in 269 patients with bilateral radial keratotomy with a single operation in each eye. Patients were required to wait 1 year after surgery on the first eye before having surgery on the second eye. At 1 year after surgery on the second eye, 98% of patients had 3.00 diopters or less difference between their two eyes in the spherical equivalent of the cycloplegic refraction (100% before surgery), and 96% of patients had 3.00 D or less difference between their two eyes In the amount of refractive power in the vertical meridian (100% before surgery). Thus, surgically induced refractive anisometropia was not a major complication in the PERK study. However, 14% of patients had four to eight Snellen lines difference in the uncorrected visual acuity between their two eyes (1% before surgery), emphasizing that induced asymmetry of refraction is a potential clinical problem for some patients. [Refractive & Corneal Surgery 1989; 5:75-81.]
Type of Medium:
Online Resource
ISSN:
1081-597X
DOI:
10.3928/1081-597X-19890301-04
Language:
English
Publisher:
SLACK, Inc.
Publication Date:
1989
detail.hit.zdb_id:
1264796-2
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