Corneal Thickness Measured by Dual Scheimpflug, Anterior Segment Optical Coherence Tomography, and Ultrasound Pachymetry.
10.3341/jkos.2012.53.10.1412
- Author:
Dong Wook KIM
1
;
Ka Young YI
;
Dong Gyu CHOI
;
Young Joo SHIN
Author Information
1. Department of Ophthalmology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea. schinn@hanmail.net
- Publication Type:Original Article
- Keywords:
Anterior segment optical coherence tomography;
Central corneal thickness;
Dual rotating scheimpflug camera;
Galilei;
Ultrasound pachymetry
- MeSH:
Eye;
Tomography, Optical Coherence
- From:Journal of the Korean Ophthalmological Society
2012;53(10):1412-1418
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: To compare central corneal thickness (CCT) as measured by dual rotating Scheimpflug camera (Galilei), anterior segment optical coherence tomography (AS-OCT), and ultrasound pachymetry (USP). METHODS: The measurements of CCT using a dual rotating Scheimpflug camera, AS-OCT, and USP in 40 eyes of 20 healthy subjects were compared. RESULTS: The average measurements of CCT by dual rotating Scheimpflug camera, AS-OCT, and USP were 538.10 +/- 31.36 microm, 536.20 +/- 31.21 microm, and 541.93 +/- 34.93 microm, respectively. The CCT measurement by USP was statistically significantly thicker than by the dual rotating Scheimpflug camera and AS-OCT (p = 0.017, p = 0.001, respectively). There was no significant difference between the dual rotating Scheimpflug camera and AS-OCT (p = 0.054). A significant linear correlation was observed between the dual rotating Scheimpflug camera, the AS-OCT, and the USP (r > 0.900, p < 0.001). CONCLUSIONS: The results of the 3 methods have significant correlation with each other, but the measurement by USP was significantly thicker than the dual rotating Scheimpflug camera and AS-OCT. Therefore, CCT should be interpreted in the context of the instrument used.
