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A Oguri, I Mitsui; Results of Advanced Orthokeratology for Medium Myopia in Japan . Invest. Ophthalmol. Vis. Sci. 2002;43(13):3093.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose: To evaluate the visual results of advanced orthokeratology to treat patients with medium myopia in Japan. Methods: A retrospective study of 71 eyes of 36 patients, with mean age of 22.6 (range 7-57), whose spherical equivalent (SE) range was -2.0 to -4.0 diopters (D), was conducted. The mean SE was -3.1 ± 0.5D. The same orthokeratologist designed custom rigid gas-permeable (RGP) contact lenses for all patients. The subjects were followed at least 1 month using only one designed lens for each eye. Uncorrected visual acuity (UCVA) was 0.3 or worse in all cases. The patients wore the RGP lens for approximately 9 hours per day. The follow up examinations were performed in the morning (10am to 12am). Results: All eyes obtained improvement in UCVA after the treatment. After 1 week of follow up, the 70.3% of subjects was 0.6 or better in UCVA and the mean SE was -1.8 ± 0.8D. After 1 month, the 86.9% of them was 0.6 or better and the mean SE was -1.4 ± 0.8D. No severe complications occurred during the follow up period. Conclusion: Advanced orthokeratology, even using only the first designed lens, was found to be safe and enough effective in the treatment of refractive errors for medium myopia in Japan. This method deserves further investigation as one of the treatments of choice in refractive therapy. Longer follow-up is necessary for long-term results.
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