title: Photorefractive keratectomy for residual myopia after previous refractive keratotomy.
abstract: Photorefractive keratectomy (PRK) was performed on 91 eyes of 71 patients who had previous radial keratotomy, radial combined with astigmatic keratotomy or astigmatic keratotomy alone (refractive keratotomy). Residual myopia, prior to photorefractive keratectomy, ranged from -1.50 to -8.00 D (mean -3.62) and cylinder from 0 to 2.25 D (mean 0.78). Uncorrected visual acuity was 20/40 or better in 89.7% at one year. At the 12 month follow-up 75.9% of patients were within +/- 1.00 D of intended correction.
authors.affiliation: Hunkeler Eye Clinic, Kansas City, Missouri 64111.
authors.forename: D S
authors.initials: DS
authors.lastname: Durrie
authors.forename: D J
authors.initials: DJ
authors.lastname: Schumer
authors.forename: T B
authors.initials: TB
authors.lastname: Cavanaugh
mesh_terms: D000328:Adult; D001251:Astigmatism / Q000601:surgery; D003315:Cornea / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D007646:Keratotomy, Radial / Q000009:adverse effects*; D053685:Laser Therapy; D008875:Middle Aged; D009216:Myopia / Q000209:etiology / Q000601:surgery*; D012086:Reoperation; D016896:Treatment Outcome; D014792:Visual Acuity