title: Excimer laser photorefractive keratectomy for myopia: two-year follow-up.
abstract: We evaluated the results of photorefractive keratectomy (PRK) with an excimer laser on 45 consecutive myopic eyes (23 patients) that were followed two years or more. The myopic range was from -2.00 diopters (D) to -6.00 D with astigmatism less than 1.50 D. Uncorrected visual acuity better than 20/25 was achieved in 88.9% of all cases two years postoperatively. Best corrected visual acuity was equal to or better than preoperatively in 95.6% of eyes. The difference between the attempted and achieved correction was within +/- 1.00 D in 91.1% two years postoperatively. Keratometric readings and central corneal thickness showed a gradual restoration until six months postoperatively and then stabilized. The cornea was clear in 66.7% of the eyes. The most common subjective complaint was decreased night vision two years after PRK. From our experience, excimer laser PRK is a predictable and effective surgical method to correct myopia up to -6.00 D in a single-step procedure.
authors.affiliation: Department of Ophthalmology, Kangnam St. Mary's Hospital, Catholic University Medical College, Seoul, Korea.
authors.forename: J H
authors.initials: JH
authors.lastname: Kim
authors.forename: T W
authors.initials: TW
authors.lastname: Hahn
authors.forename: Y C
authors.initials: YC
authors.lastname: Lee
authors.forename: W J
authors.initials: WJ
authors.lastname: Sah
mesh_terms: D000328:Adult; D000900:Anti-Bacterial Agents / Q000008:administration & dosage; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000008:administration & dosage; D003315:Cornea / Q000601:surgery*; D005260:Female; D005500:Follow-Up Studies; D005938:Glucocorticoids / Q000008:administration & dosage; D006801:Humans; D053685:Laser Therapy / Q000009:adverse effects; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000503:physiopathology / Q000601:surgery*; D011183:Postoperative Complications / Q000517:prevention & control; D014792:Visual Acuity
chemical_list: D000900:Anti-Bacterial Agents; D000894:Anti-Inflammatory Agents, Non-Steroidal; D005938:Glucocorticoids