Central Corneal Thickness Measured by Noncontact Specular Microscopy, Dual Rotating Scheimpflug Camera and Ultrasound Pachymetry.

Lee, Min Jee; Shin, Yong Un; Lim, Han Woong; Kang, Min Ho; Cho, Hee Yoon; Seong, Min Cheol

doi:2015.56.10.1520

J Korean Ophthalmol Soc > Volume 56(10); 2015 > Article

Original Article

Journal of the Korean Ophthalmological Society 2015;56(10):1520-1526.
DOI: https://doi.org/10.3341/jkos.2015.56.10.1520 Published online October 15, 2015.

Central Corneal Thickness Measured by Noncontact Specular Microscopy, Dual Rotating Scheimpflug Camera and Ultrasound Pachymetry.

Min Jee Lee, Yong Un Shin, Han Woong Lim, Min Ho Kang, Hee Yoon Cho, Min Cheol Seong

Department of Ophthalmology, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea. goddns76@hanmail.net

비접촉경면현미경, 이중샤임플러그 전안부사진기, 초음파각막두께측정계를 이용해 측정한 중심각막두께의 비교

이민지⋅신용운⋅임한웅⋅강민호⋅조희윤⋅성민철

한양대학교 의과대학 한양대학교구리병원 안과학교실

Received: 17 April 2015 • Revised: 30 May 2015 • Accepted: 23 July 2015

Abstract

PURPOSE
To compare central corneal thickness (CCT) as measured using noncontact specular microscopy (NCSM), dual rotating Scheimpflug camera (Galilei(R)), and ultrasound pachymetry (USP). METHODS: The measurements of CCT using NCSM, dual rotating Scheimpflug camera and USP in 70 eyes of 70 healthy subjects were compared. RESULTS: The average measurements of CCT using NCSM, dual rotating Scheimpflug camera, and USP were 567.70 +/- 31.21 microm, 557.84 +/- 26.29 microm, and 553.31 +/- 29.69 microm, respectively. The CCT measurement using NCSM was statistically significantly thicker than when measured using USP (p < 0.05). There was no significant difference between the NCSM and dual rotating Scheimpflug camera (p = 0.138). Additionally, there was no significant difference between the dual rotating Scheimpflug camera and USP (p = 0.656). A significant linear correlation was observed among the NCSM, dual rotating Scheimpflug camera, and USP (r > 0.900, p < 0.001). CONCLUSIONS: The results of the 3 methods were significantly correlated but the measurement using NCSM was significantly thicker than when using USP. CCT measurements of healthy eyes using dual rotating Scheimpflug camera were more correlated with USP than NCSM. The CCT measurements using dual rotating Scheimpflug camera is a better alternative for USP than NCSM.

Key Words: Central corneal thickness;Dual rotating Scheimpflug camera;Noncontact microscopy;Ultrasound pachymet