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http://dx.doi.org/10.14479/jkoos.2015.20.2.105

Analysis of Vertex Refractive Power Accuracy of Soft Contact Lens with Holder Type  

Lee, Min-Jae (Dept. of Optometry & Vision Science, Catholic University of Daegu)
Sung, A-Young (Dept. of Optometry & Vision Science, Catholic University of Daegu)
Publication Information
Journal of Korean Ophthalmic Optics Society / v.20, no.2, 2015 , pp. 105-115 More about this Journal
Abstract
Purpose: The accuracy for measuring the refractive power of hydrogel contact lenses by spectacle lens holder and contact lens holder was evaluated. The accuracy for each sample was also analyzed with water content and diopter categories. Methods: The hydrogel contact lenses used for measurement were classified into three categories in water content (38%, 43%, 58%). Also, three diopter categories of refractive power were used such as -3.000 D, -7.000 D, -10.000 D. And also, the reliability of measurement results were evaluated by measuring refractive power with spectacle lens holder and contact lens holder using an Manual lensmeter. Results: In case of spectacle lens holder method, the average value of refractive power was -3.3273D for -3.0000 D, -7.1306 D for -7.0000 D and -10.2944 D for -10.0000 D, respectively. In case of contact lens holder method, the average value of refractive power was -3.1060 D for -3.0000 D, -7.0028 D for -7.0000 D and -10.2611 D for -10.0000 D, respectively. In measurement of all diopters, the accuracy of contact lens holder method was better than spectacle lens holder method. Conclusions: From these results, it is judged that the refractive power of soft contact lens by manual lensmeter with contact lens holder have a higher accuracy than spectacle lens holder.
Keywords
Manual lensmeter; Spectacle lens holder; Contact lens holder;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
연도 인용수 순위
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