논문 상세보기
pp.363-371
목 적: 본 연구는 안경렌즈 굴절력 측정을 위해 사용되는 렌즈미터에 대해 기존 4점 방식 자동렌즈미터 와 Shack–Hartmann 방식의 렌즈미터를 사용하여 구면 안경렌즈의 굴절력을 각각 측정하고 정확도를 분석 하였다. 방 법: 실험에 사용한 안경렌즈는 임상에서 주로 많이 사용되고 있는 국내 제조업체의 렌즈를 사용하였 으며, 제조사별로 A, B, C사의 안경렌즈를 구면굴절력에 따라 -5.00D, -10.00D, -15.00D로 분류하여 각 각 실험하였다. 결 과: 4점 방식 자동렌즈미터를 사용하여 구면렌즈의 굴절력을 측정한 결과 -5.00D는 A사 -4.89D, B 사 -4.92D, C사 -4.97D로 측정되었으며, -10.00D는 A사 -9.94D, B사 -9.94D, C사 -9.93D, -15.00D는 A사 -14.96D, B사 -14.90D, C사 -14.92D로 각각 측정되었다. Shack–Hartmann 방식 자동렌즈미터를 이 용하여 같은 종류의 구면렌즈의 굴절력을 측정한 결과 -5.00D는 A사 -5.00D, B사 -5.01D, C사 -5.02D로 측정되었으며, -10.00D는 A사 -10.00D, B사 -10.01D, C사 -10.00D, -15.00D는 A사 -15.09D, B사 -15.01D, C사 -15.08D로 각각 측정되었다. 결 론: 안경렌즈 굴절력 측정에 있어 구면렌즈의 경우 Shack–Hartmann 방식의 자동렌즈미터가 4점 방 식 렌즈미터보다 더 정확한 측정값을 나타내었다.
Purpose: The purpose of this research is to analyze the accuracy of digital lensmeters which are using 4 point and Shack-Hartman method respectively. Method: The measured lenses are from the most frequently used manufacturers’ones in Korea. The lenses are from 3 different brands(A, B, C) with spherical power of -5.00D, -10.00D, and -15.00D. Result: The following results were obtained using 4 point method employed lensmeter; the average value of refractive power was -4.89D for manufacture A as -5.00D, -4.92D for manufacture B as -5.00D and -4.97D for manufacture C as -5.00D, respectively. The average value of refractive power was -9.94D for manufacture A as -10.00D, -9.94D for manufacture B as -10.00D and -9.93D for manufacture C as -10.00D respectively. The average value of refractive power was -14.96D for manufacture A as -15.00D, -14.90D for manufacture B as -15.00D and -14.92D for manufacture C as -15.00D respectively. The following results were also obtained using Hartman Shack method employed lensmeter; The average value of refractive power was -5.00D for manufacture A as -5.00D, -5.01D for manufacture B as -5.00D and -5.02D for manufacture C as -5.00D, respectively. The average value of refractive power was -10.00D for manufacture A as -10.00D, -10.01D for manufacture B as -10.00D and -10.00D for manufacture C as -10.00D respectively. The average value of refractive power was -15.09D for manufacture A as -15.00D, -15.01D for manufacture B as -15.00D and -15.08D for manufacture C as -15.00D respectively. Conclusion: As per the minus diopter spherical lenses, the Shack-Hartman lensmeter showed better accuracy in spherical lenses values reading.
