Laser in situ keratomileusis for the reduction of myopia: an evaluation of clinical results
Augustine, J.M.; Chester, T.M.
Journal of the American Optometric Association 67(12): 721-731
1996
ISSN/ISBN: 0003-0244 PMID: 9286313 Document Number: 469047
Laser in situ keratomileusis (LASIK) combines a 30-year-old established lamellar keratectomy procedure with the precision of the photoablating excimer laser. This procedure is used to reduce moderate myopia and astigmatism. LASIK was performed on 130 eyes and the visual outcome was evaluated. A total of 63 male eyes and 67 female eyes (mean age, 36 years: range, 19 to 57 years) were evaluated, for a total of 130 eyes. The mean preoperative spherical equivalent was -7.450 (range, -3.12 to -13.87 D). The mean preoperative cylinder was -1.15 DC (range, plano to -4.50 DC). For 130 eyes, after 1 month the mean postoperative spherical equivalent was -0.53 D (range, +2.00 to -4.62 D), and the mean postoperative cylinder was -0.33 DC (range, plano to -2.75 DC). For 82 eyes, after 3 months the mean postoperative spherical equivalent was -0.83 D (range, +1.00 to -4.67 D), and the mean postoperative cylinder was -0.41 DC (range, plano to -2.00 DC). For 49 eyes, after 6 months the mean postoperative spherical equivalent was -0.84 D (range, +1.00 to -8.25 D), and the mean postoperative cylinder was -0.43 DC (range, plano to -1.75 DC). For 20 eyes, the mean postoperative spherical equivalent after 12 months was -0.72 D (range, +0.50 to -2.50 D), and the mean postoperative cylinder was -0.53 DC (range, plano to -2.50 DC). LASIK appears to be an effective treatment for the reduction of moderate-to-high myopia.