한국안광학회지 (Journal of Korean Ophthalmic Optics Society)

한국안광학회 (The Korean Ophthalmic Optics Society)
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홀더종류에 따른 소프트 콘택트렌즈의 정점굴절력 측정의 정확도 분석

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

  • 이민제 (대구가톨릭대학교 안경광학과) ;
  • 성아영 (대구가톨릭대학교 안경광학과)
  • Lee, Min-Jae (Dept. of Optometry & Vision Science, Catholic University of Daegu) ;
  • Sung, A-Young (Dept. of Optometry & Vision Science, Catholic University of Daegu)
  • 투고 : 2015.02.02
  • 심사 : 2015.04.20
  • 발행 : 2015.06.30
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초록

목적: 본 연구는 안경렌즈홀더와 콘택트렌즈홀더를 사용하여 다양한 디옵터와 함수율을 가진 소프트 콘택트렌즈의 굴절력을 측정하고 정확도를 평가하여 그 차이를 비교하였다. 방법: 실험에 사용한 소프트 콘택트렌즈의 함수율은 각각 38%, 43% 및 58%이었으며, 굴절력에 따라 -3.000 D, -7.000 D 및 -10.000 D로 분류하여 각각 실험하였다. 또한 망원경식 렌즈미터를 사용하여 안경렌즈홀더 및 콘택트렌즈홀더로 각각의 정점굴절력을 측정하여 정확도를 분석하였다. 결과: 안경렌즈홀더를 사용한 경우 -3.0000 D는 -3.3273 D로 측정되었으며, -7.0000 D는 -7.1306 D, -10.0000 D는 -10.2944D로 각각 측정되었다. 또한 콘택트렌즈홀더를 사용한 경우 -3.0000 D는 -3.1060 D로 측정되었으며, -7.0000 D는 -7.0028 D, -10.0000 D는 -10.2611 D로 각각 측정되었다. 모든 종류의 콘택트렌즈에서 콘택트렌즈홀더를 사용한 방법이 안경렌즈홀더를 사용한 방법보다 더 정확한 측정값을 나타내었다. 결론: 위 결과로 볼 때, 망원경식 렌즈미터를 사용한 소프트 콘택트렌즈의 굴절력 측정에 있어 콘택트렌즈홀더를 사용한 방법이 안경렌즈홀더를 사용한 방법보다 더 높은 정확도를 가진 것으로 판단된다.

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.

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참고문헌

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