Journal of the Korean Ophthalmological Society 2004;45(6):920-927.
Published online June 1, 2004.
Clinical Manifestation for Iatrogenic Keratectasia after Laser in Situ Keratomileusis (LASIK).
Dong Hyun Jee, Man Soo Kim
Department of Ophthalmology, KangNam St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea. mskim@cmc.cuk.ac.kr
LASIK 시술 후에 발생한 의인성 각막 확장증의 임상양상
지동현 ( Dong Hyun Jee ) , 김만수 ( Man Soo Kim )
Abstract
PURPOSE
This study was devised to report the clinical manifestations of the eyes developing keratectasia after laser in situ keratomileusis (LASIK). METHODS: In this retrospective study, among the 204 patients (408 eyes) who had LASIK between January 1996 and December 2001, charts of eleven patients (14 eyes) who developed post-LASIK keratectasia were reviewed. The mean follow-up was 36.18 months (range 12 to 67 months). RESULTS: Pre-LASIK corneal topographies of the patients shows that asymmetric bow tie pattern was the most common topographical finding (42.86%). The postoperative remaining corneal bed thickness (221.625 micro meter) of bilaterally afftected group was significantly lower than that (240.75 micro meter) of the unilaterally affected group (p=.0208), and the preoperative mean keratometric value (44.40D) was significantly higher than that of unilaterally affected group (p=.0212). The change of spherical equivalent and cylinder diopter value after LASIK was most prominent between one and four months postoperatively. CONCLUSIONS: LASIK is a highly effective procedure for correcting myopia, but in order to prevent serious postoperative complications such as keratectasia, we should be aware of the incitng factors listed above.
Key Words: Keratectasia;Keratometric value;LASIK;Remaining corneal bed thickness


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