J Korean Ophthalmol Soc.  1993 Dec;34(12):1208-1212.

Excimer Laser Photorefractive keratectonly-Multicenter Study

• Sohn JH
• Tchah HW
• Kim YJ

Abstract

370 eyes which underwent phtorefractive keratectorny With VISX 20/20 excuner laser were evaluated. At 6 months post-op, the low myopic group(under -6D) of 172 eyes with mean pre-op refractive error of -4.48D changed to -0.54D, the moderate myopic group(between -6D and -9D) of 128 eyes changed from -7.47D to -1.19, and the hlgh myopic group(above -9D) of 70 eyes changed from -11.29D to -2.68D, 76%, 61.9%, ahd 17.4% of the respective groups were with +/-1D of emmetropia. Uncorrected vision hetter than 20/40 was achiced in 90.7%, 75.2% and 31 9% of the resperective groups. The best corrected vision below 2 lines from the best pre-op level was seen in 1.2%, 2.3%, and 4.3% of the respective groups. The astigmatic correction rate was 6.6% in the eyes under 1D of astigmatism, 36.1% in the eyes between 1D and 2D, and 54.5% in the eyes more than 2D.

Keyword

Excimer laser; Myopia; Photorefractive; Keratectomy

MeSH Terms

Astigmatism
Emmetropia
Lasers, Excimer*
Myopia
Refractive Errors