Journal of the Korean Ophthalmological Society 2004;45(6):908-912.
Published online June 1, 2004.
The Efficacy and Safety of Reverse Geometry Lenses.
Ji Woong Chang, Tae Hoon Choi, Ha Bum Lee
Department of Ophthalmology, Kangdong Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea. thc@hallym.or.kr
역기하렌즈의 근시 교정 효과와 안정성
장지웅 ( Ji Woong Chang ) , 최태훈 ( Tae Hoon Choi ) , 이하범 ( Ha Bum Lee )
Abstract
PURPOSE
To evaluate the amount of myopia correction and safety after Ortho-K LK(TM) lens wear. METHODS: We performed a retrospective analysis on 17 patients (34 eyes) wearing Ortho-K LK(TM) lenses. Uncorrected visual acuity, spherical equivalent, astigmatism, and corneal endothelial cell count were measured before fitting and 1week, 2weeks, and 1, 3 and 6months after lens fitting. RESULTS: There was significant improvement of uncorrected visual acuity and spherical equivalent 1week later and these effects maintained after 6months. However, there was no significant change of the amount of astigmatism and corneal endothelial cell density. The most common complications were decenterations of lenses, corneal erosion, and iron deposit.; these were not, however, serious enough to stop lens wearing. CONCLUSIONS: There was a significant improvement of unaided visual acuity and spherical equivalent after Ortho-K LK(TM) lens wear. There was some significant decrease of visual acuity between 3 and 6months after lens wear and there must be another reason other than patients' compliance.
Key Words: Efficacy;Orthokeratology;Safety


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