한국안광학회지 (Journal of Korean Ophthalmic Optics Society)

한국안광학회 (The Korean Ophthalmic Optics Society)
권호 표지

자동렌즈미터를 이용한 소프트 콘택트렌즈의 굴절력 측정 방법에 관한 신뢰도

Reliability of Measurements of Back Vertex Power for Soft Contact Lenses Using an Auto-Lensmeter

  • Kim, Kun-Kyu (Department of Visual Optics, Kyungwoon University) ;
  • Lee, Wook-Jin (Department of Visual Optics, Kyungwoon University) ;
  • Lee, Sun-Haeng (Department of Ophthalmic Optics, Gimhae College) ;
  • Kwak, Ho-Won (Department of Visual Optics, Kyungwoon University) ;
  • Yu, Dong-Sik (Department of Visual Optics, Kyungwoon University)
  • 투고 : 2010.01.24
  • 심사 : 2010.03.19
  • 발행 : 2010.03.31
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초록

목적: 자동렌즈미터를 이용한 소프트 콘택트렌즈의 굴절력 측정에서 dry blotting과 wet cell 방법에 따른 신뢰도를 평가하고자 하였다. 방법: 측정에 사용한 소프트렌즈는 현재 국내에서 유통되고 있는 렌즈 5종류, 4개의 굴절력(-1.50D, -3.00D, -6.00D, -9.00D)을 이용하였고, 두 검사자가 자동렌즈미터로 측정하여 반복성과 재현성을 평가하였다. 결과: Dry blotting방법으로 측정한 굴절력의 평균 차이는 0.03~0.18D였으며, 실리콘 하이드로겔 렌즈에서 0.10~0.18D, 하이드로겔 렌즈에서 0.03~0.08D로 나타났다. 두 검사 간의 평균 차이는 0.10D이하로 측정자 간의 재현성이 좋은 것으로 나타났다. Wet cell방법으로 측정한 굴절력의 평균 차이는 0.09~0.69D였으며, 두 검사자 간에 평균 차이는 0.02~0.59D로 나타났으며, 소재에 따른 측정의 신뢰도와 검사자 간의 재현성은 낮았다. 결론: 모든 재질에 대해 dry blotting 방법이 wet cell방법보다 신뢰도가 좋았으며, 두 방법 모두 실리콘 하이드로겔 렌즈에서는 낮은 신뢰도를 보였다. 자동렌즈미터를 이용하여 신속히 후면 정점굴절력을 확인할 필요가 있는 실무 현장에서 dry blotting방법이 효율적인 것으로 판단된다.

Purpose: To assess the reliability for measuring the back vertex power of soft contact lenses by dry blotting and wet cell method using an auto-lensmeter. Methods: The soft contact lenses used for measurement were 5 types that were distributed in Korea, and 4 back vertex powers (-1.50D, -3.00D, -6.00D, -9.00D) were used. and repeatability and reproducibility were evaluated by measuring them with an auto-lensmeter by two examiners. Results: Measured powers by dry blotting method were ranged in mean differences from 0.03D to 0.18D for overall lenses, 0.10D to 0.18D for silicone hydrogel lenses, 0.03D to 0.08D for hydrogel lenses. The mean differences between two examiners were less than 0.10D, and the inter-examiner reproducibility was good for dry blotting method. The mean difference between powers determined by wet cell method were 0.09D to 0.69D, the mean differences between two examiners were 0.02D to 0.59D. The reliability of measurements and inter-examiner reproducibility were less than dry blotting method. Conclusions: The reliability of measurements for all materials was better in dry blotting than wet cell method, the re liability of measurements for silicone hydrogel lenses was low in both methods. In clinical practical which requires quick checking of back vertex power using an auto-lensmeter. dry blotting method is thought to be more efficient than wet cell one.

키워드

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