Clinical Result of Retreatment after LASIK.

Kim, Kyung Hoon; Choi, Tae Hoon; Lee, Ha Bum

Original Article

Journal of the Korean Ophthalmological Society 1999;40(1):55-60.
Published online January 1, 1999.

Clinical Result of Retreatment after LASIK.

Kyung Hoon Kim, Tae Hoon Choi, Ha Bum Lee

Department of Ophthalmology, Kangdong Sacred Heart Hospital, College of Medicine,Hallym University.

레이저각막절삭가공성형술(LASIK) 후 재치료의 임상성적

김경훈(Kyung Hoon Kim),최태훈(Tae Hoon Choi),이하범(Ha Bum Lee)

Abstract

We evaluated the effect of retreatment for under- of overcorrection after laser in situ keratomileusis(LASIK). We performed LASIK enhancement after lifting flap(8 eyes) and transepithelial PRK(1 eye) for the 9 eyes of undercorrection and 1 eye of hyperopic correction after primary LASIK procedures were performed from October 1996 through May 1997. The average preoperative refractive error was -12.88D and preretreatment refractive error was -3.53D in spherical equivalent. The average period from primary LASIK to retreatment was 85.7 days and we evaluated the stability, predictability, efficacy, safety, and complications after 6 months. At 6 months postretreatment, the average refractive error was -0.31D and 8 eyes obtained a refraction within +/-1.0D of emmetropia. Uncorrectedvisual acuity(UCVA) was improved from 0.24 to 0.71. There was one eye with grade III corneal haze and decentration after transepithelial PRK on corneal flap. And it had 1 line loss of best corrected visual acuity(BCVA) compared with preretreatment BCVA. The final average refractive error of the 7 eyes which underwent retreatment after 1 month was closer to emmetropia than that of the other 3 eyes which underwent retreatment within 1 month, but there was no statistically significant difference(p>0.05). In conclusion, LASIK tetreatment may be considered for the correction of under- and overcorrection after LASIK.

Key Words: Laser In situ Keratomileusis;Refractive error;Retreatment