Abstract
Clinical evaluation of the Closed-view autorefractor and Open-view autorefractor was performed to examine validity and repeatability compared with subjective refraction. Measurements of refractive error were performed on 126 eyes of 65 subjects (aged $26{\pm}7.5$ years) subjectively noncycloplegic. Intersession repeatability of the Closed-view and Open-view were also assessed on all 65 subjects together with Intersession repeatability on 7 to 14 days intervals. Spherical powers and spherical equivalent values of subjective refraction and autorefractions by Closed-view and Open-view were analyzed by paired T-test. The mean spherical powers of subjective refraction, Closed-view and Open-view were determined to be $-2.125{\pm}2.155D$, $-2.146{\pm}1.907D$, $-2.117{\pm}2.121D$, respectively. The mean spherical equivalent values of subjective refraction, Closed-view and Open-view were determined to be $-2.362{\pm}2.204D$, $-2.391{\pm}1.967D$, $-2.366{\pm}2.162D$, respectively. The results showed that the refractive errors as measured by the Closed-view and Open-view were found to be similar to the subjective refraction in all components.
본 연구는 자각적 굴절검사와 비교하여 유효성과 신뢰성을 조사하기 위하여 폐쇄형 자동굴절검사기와 개방형 자동굴절검사기에 대한 임상적 평가를 실험하였다. 65명의 피검사자(평균연령$26{\pm}7.5$세)의 126안을 대상으로 비 조절마비 굴절검사를 하였고, 65명의 피검사자 모두를 7일에서 14일간격으로 재측정하여 회 차별 신뢰도를 분석하였다. 자각적 굴절검사, 폐쇄형 및 개방형 기기로 검사한 구면굴절력과 등가구면 굴절력을 T-test로 분석하였다. 구면굴절력의 평균은 자각굴절검사, 폐쇄형, 개방형 5001에서 각각 $-2.125{\pm}2.155D$, $-2.146{\pm}1.907D$, $-2.117{\pm}2.121D$로 측정되었다. 등가구면 굴절력은 자각굴절검사, 폐쇄형, 개방형 5001에서 각각 $-2.362{\pm}2.204D$, $-2.391{\pm}1.967D$, $-2.366{\pm}2.162D$로 측정되었다. 폐쇄형 자동굴절검사기와 개방형 자동굴절 검사기는 모든 굴절력 값에서 자각 굴절검사 값과 유의한 차이를 보이지 않았다.