레이저 각막두께측정계 각막형태검사와 초음파를 이용한 각막두께측정비교

• 영문명: Comparison of Corneal Thickness Measurements with Optical Low Coherence Reflectometry, Orbscan System and Ultrasound Pachymeter
• 발행기관: 대한안과학회
• 저자명: 최시환 김정훈 한남수 조영준 이성복,Si Hwan Choi, M.D., Jeong Hoon Kim, M.D., Nam Su Han, M.D., Young Joon Jo, M.D., Seong Bok Lee, M.D.
• 간행물 정보: 『대한안과학회지』Ophthalmological Society,volume47,number1, 19~24쪽, 전체 6쪽
• 주제분류: 의약학 > 기타의약학
• 파일형태: PDF
• 발행일자: 2006.01.31

영문 초록

Purpose: To investigate the accuracy and reproducibility of Optical Low Coherence Reflectometry (OLCR) corneal thickness measurements compared with the Orbscan system and ultrasound pachymeter (IOPac, Mentor). Methods: Two examiners measured corneal thicknesses of 78 normal eyes and in 36 eyes that had undergone LASIK, and five sequential measurements of corneal thickness with OLCR, Orbscan system, Mentor, and IOPac were performed. Remeasurements of corneal thickness in 24 normal eyes were performed after two days to investigate intra-examiner reproducibility. Results: The average corneal thickness measured in normal subjects was 536.3±23.8 ?m in OLCR, 542.4±25.3 ?m in the Orbscan system, 535.4±23.7 ?m in Mentor, and 534.2±24.1 ?m in IOPac. The average corneal thickness measured in patients who had undergone LASIK was 487.3±30.8 ?m in OLCR, 492.5±36.5 ?m in the Orbscan system, 487.5±30.8 ?m in Mentor, and 485.3±30.8 ?m in IOPac. There was no statistically significant difference between the four pachymeters. The inter-examiner and intra-examiner reproducibilities were shown to be highly reliable. Conclusions: The OLCR showed similar measurments of corneal thickness with the Orbscan system and ultrasound pachymeter, and showed no difference in reproducibility with different examiners.

키워드

Corneal thickness, OLCR (Optical Low Coherence Reflectometry), Orbscan system, Pachymeter, Ultrasound pachymeter