The Clinical Results of LASIK in High Myopia: One-year follow-up.

Kim, Sang Jun; Tchah, Hungwon

Original Article

Journal of the Korean Ophthalmological Society 2000;41(4):894-901.
Published online April 1, 2000.

The Clinical Results of LASIK in High Myopia: One-year follow-up.

Sang Jun Kim, Hungwon Tchah

Department of Ophthalmology, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Korea.

고도근시에서 LASIK 수술 : 1 년 결과

차홍원(Hung Won Tchah),김상준(Sang Jun Kim)

Abstract

The authors studied the results of 134 eyes(108 patients)with myopia ranging from -6.00 to -24.125D, uncorrected visual acuity, corrected visual acuity, refractive error, after 1, 3, 6 months, and 1 year. They received excimer laser in situ keratomileusis changing the nomogram(groupI:80~90% of PRK, II:100%, III:105%)with Visx 20/20 and the Chiron Automated Corneal Shaper microkeratome from Jan.1996. Mean age was 29.9 year old(20~48 year old). Men were 38 eyes, women were 70 eyes. Mean preoperative spherical equivalent was -11.34D+/-3.94D and mean postoperative spherical equivalents(SE)of group III at 1, 3, 6 months, 1 year were -0.27D+/-1.05D, -0.44D+/-1.08D, -0.63D+/-1.21D, -0.81D+/-1.23D. In group 3, SE of -6D ~ -10D(A), -10D ~ -13D(B)and -13D~(C)after 1 year were -0.39D+/-0.57D, -0.68 D+/-0.98D, -1.94D+/-1.90D respectively. Uncorrected visual acuity after 1, 3, 6 months, 1 year was 0.5 or better in 76, 85, 76, 76%, and 0.8 or better in 46, 49, 49, 51% respectively. 42 eyes(71%) within 1D of attempted correction in group III. Best corrected visual acuity did not change in most eyes, 6 eyes(4.4% of 134 eyes)lost two or more of spectacle corrected visual acuity. No sight-threatening complications occurred intraoperatively. Postoperative complications included 29 eyes(21%)of interface foreign body, 16 eyes(12%)of night glare, 16 eyes(12%)of cap microwrinkling. Corneal haze did not be noted. LASIK for high myopia was safe method, but myopic regression observed after 1 year.

Key Words: Complication;High myopia;Laser in situ keratomileusis;Refraction;Visual acuity