| The Inhibitory Effect of Myopic and Astigmatic Progression by Orthokeratology Lens. |
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Won Hee Lee, Young Kee Park, Jong Mo Seo, Jong Hoon Shin |
1Lee and Park's Eye Clinic, Seoul, Korea. leeeye47@hanmail.net
2Department of Electrical Engineering, College of Engineering, Seoul National University, Seoul, Korea.
3Department of Ophthalmology, Seoul National University Hospital, Seoul, Korea.
4Department of Ophthalmology, Pusan National University School of Medicine, Busan, Korea. |
| 각막굴절교정학 콘택트렌즈가 근시 및 난시의 진행에 미치는 영향 |
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이원희1⋅박영기1⋅서종모2,3⋅신종훈4 |
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Lee and Park’s Eye Clinic1, Seoul, Korea Department of Electrical Engineering, College of Engineering, Seoul National University2, Seoul, Korea Department of Ophthalmology, Seoul National University Hospital3, Seoul, Korea Department of Ophthalmology, Pusan National University School of Medicine4, Busan, Korea |
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| Abstract |
PURPOSE
To investigate the clinical effects of orthokeratology lens wear on inhibition of the progression of Korean myopia and astigmatism. METHODS: The authors reviewed out-patient records of 144 eyes of 74 patients wearing orthokeratology lenses. The cycloplegic refraction and keratometry before and after wearing the lens were compared. The 190 eyes wearing spectacles were included into the control group. We evaluated the relationship between orthokeratology lens wear and control group according to age, initial myopia, initial astigmatism, myopic progression, astigmatic progression and duration of orthokeratology lens wearing. RESULTS: The mean cycloplegic refractive error of spherical equivalent was -3.36 +/- 1.96 diopters (D) in the patients wearing orthokeratology lenses, the mean astigmatism was -0.86 +/- 0.72 D, and the mean wearing period was 3.41 +/- 1.5 years. The mean myopic progression was 0.25 +/- 0.31 D in lens wearing, and 0.62 +/- 0.39 D in glasses wearing, respectively. There were statistically significant differences between lens and glasses wearing group (t-test, p < 0.01). The mean astigmatic progression was 0.06 +/- 0.22 D in lens wearing, and 0.15 +/- 0.21 D in glasses wearing control group respectively, and the results also show statistically significant differences (t-test, p < 0.01). There were no relationships between two groups as for age, initial myopia, initial astigmatism and duration of orthokeratology lens wearing (t-test, p > 0.01). CONCLUSIONS: The orthokeratology lens was found to be effective in suppression of the progression of Korean myopia and astigmatism, compared with the glasses. |
| Key Words:
Astigmatism;Myopia;Orthokeratology |
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