한국안광학회지 (Journal of Korean Ophthalmic Optics Society)

한국안광학회 (The Korean Ophthalmic Optics Society)
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자동 굴절력계의 굴절력값과 포롭터를 이용한 처방값의 차이에 관한 연구

Research of Difference between the Refractive Powers by Autorefractometer and the Prescription using Phoropter

  • 이주환 (서울과학기술대학교 안경광학과) ;
  • 이규석 (서울과학기술대학교 안경광학과) ;
  • 홍형기 (서울과학기술대학교 안경광학과)
  • Lee, Ju-Whan (Dept. of Optometry, Seoul National University of Science and Technology) ;
  • Lee, Koo-Seok (Dept. of Optometry, Seoul National University of Science and Technology) ;
  • Hong, Hyung-Ki (Dept. of Optometry, Seoul National University of Science and Technology)
  • 투고 : 2014.04.30
  • 심사 : 2014.06.18
  • 발행 : 2014.06.30
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초록

목적: 자동굴절력계의 굴절력 값과 포롭터를 이용한 안경처방 굴절력 값에서, 굴절값 차이의 대소가 나타나는 조건을 연구하였다. 방법: 자동굴절력계(SR-7000)와 자동포롭터(AV-9000)를 이용하여 안질환이 없고, 굴절 이상으로 근용안경을 착용하는 30명을 대상으로 총 60안을 검사 하였다. 검사자에 기인한 굴절력 처방값의 변화를 방지하기 위하여, 2명의 검사자가 동일한 검사 조건에서 피검사자의 눈을 측정하였다. 결과: 통계적으로 2명의 검사자의 굴절력 처방값은 유의할만한 차이가 없었다. 대부분의 측정값에서 포롭터를 이용한 안경처방 굴절력 값이 자동굴절력계를 통해 측정된 굴절력 값보다 작게 측정되었다. 근시에서 (-)구면 굴절력 값이 클수록 자동굴절력계의 측정값과 자동포롭터 처방값 간의 차이가 증가하는 현상은 찾아 볼 수 있었다. 근시성 난시안에서 난시도수의 구간별로 결과를 분석하였다. 난시도수가 증가할수록 자동굴절력계와 자동포롭터 값 사이의 차이는 적어지는 경향을 확인할 수 있었다. 결론: 2명의 검사자의 처방값 간의 차이는 없었다. 자동굴절력계의 굴절력 값과 포롭터를 이용한 안경처방 굴절력 값 차이는 근시나 근시성 난시의 경우 피검사자의 굴절 이상도에 대략 비례한다. 피검사자의 교정 렌즈의 굴절력이 클수록 굴절력 차이가 증가하므로, 교정 렌즈 처방 시 주의가 요구된다.

Purpose: This study is research of the conditions which causes difference between the refractive power of the measurement of autorefractometer and the prescription using phoropter. Methods: Autorefractometer (SR-7000) and phoroptor (AV-9000) were used to measure 60 eyes of 30 participants who had no eye diseases and wore the corrective lens due to Ametropia. To prevent the dependence of the prescription value of the refractive power on the testers, two testers measured the refractive power of the eyes of the participants at the same measuring conditions. Results: Statistically, the prescribed values of the refractive power by two testers were not significantly different. Most of the prescribed values of the refractive power were smaller than the refractive power by autorefractometer In case of myopic eyes, the difference between refractive powers by the measurement of autorefractometer and the prescription using phoropter showed the trend of increase as the spherical refractive power became larger. The result was analyzed by the range of the different cylindrical refractive power for the myopic astigmatic eyes. In this case, the difference between refractive powers showed the trend of decrease as the cylindrical refractive power became larger. Conclusions: No difference between the prescribed value by two testers was observed. In case of myopic or myopic astigmatic eyes, the difference between refractive powers by autorefractometer and the prescription were measured to be approximately proportional to the refractive powers of ametropic eyes. As the this difference become larger for the participant who needs the lens of larger refractive power, additional caution is needed in the prescription of the refractive power of the corrective lens.

키워드

참고문헌

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피인용 문헌

  1. The Analysis of the State of Successful Refractive Surgery's Eye vol.2, pp.4, 2014, https://doi.org/10.15205/kschs.2014.2.4.223
  2. Effect of Accommodation Control by Applying Fogging Method in Subjective Refraction and Auto-Refraction in Ametropia vol.21, pp.2, 2016, https://doi.org/10.14479/jkoos.2016.21.2.119
  3. Correlation between the Two Tests and Changes in Measured Values According to Accommodative Stimulation and Fogging in the Subjective and Auto-Refraction vol.22, pp.2, 2017, https://doi.org/10.14479/jkoos.2017.22.2.175