IOLMaster, Lenstar, Orbscan 및 수동 방법을 이용한 각막윤부직경 비교

• 영문명: Comparison of White-to-White Diameters Measured by IOLMaster, Lenstar, Orbscan, and a Manual Method
• 발행기관: 대한안과학회
• 저자명: 정윤 김균형,MD, Kyun Hyung Kim, MD
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume54,number8, 1187~1192쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2013.08.15

영문 초록

Purpose: To compare and evaluate device efficacy using white-to-white (WTW) diameter measurements by IOLMaster^{®, Lenstar®, Orbscan II®, and a manual method with anterior segment photographs in normal eyes. Methods: Three sets of WTW diameter measurements were obtained from 62 normal eyes of 31 patients, using the Orbscan II®, Lenstar®, IOLMaster®, and a manual method with anterior segment photographs. Repeatability of each device was evaluated by coefficient of variation. ANOVA and Pearson's correlation were used to compare the differences among the devices. Bland Altman plot was performed to assess measurement agreement among the devices. Results: The mean WTW distance was 11.79 ± 0.46 mm with Orbscan II®, 12.05 ± 0.38 mm with Lenstar®, 12.15 ± 0.36 mm with IOLMaster®, and 12.30 ± 0.40 mm with a manual method. There were significant differences in the results among the methods (ANOVA, p < 0.05). There were significant correlations between the devices except Orbscan II® (Pearson's correlation, r > 0.8, p < 0.05). The coefficient of variation of Orbscan II® was larger than those of Lenstar® and IOLMaster®. Conclusions: The WTW measurement using Orbscan II® has low correlations with other devices and lower repeatability. Our findings suggest that partial coherence interferometry should be considered as a new standard.}

키워드

Biometry, Partial coherence interferometry, White-to-white