J Korean Ophthalmol Soc.  2004 Jun;45(6):908-912.

The Efficacy and Safety of Reverse Geometry Lenses

Affiliations
  • 1Department of Ophthalmology, Kangdong Sacred Heart Hospital, College of Medicine, Hallym University, Seoul, Korea. thc@hallym.or.kr

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.

Keyword

Efficacy; Orthokeratology; Safety

MeSH Terms

Astigmatism
Compliance
Endothelial Cells
Humans
Iron
Myopia
Retrospective Studies
Visual Acuity
Iron
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