J Korean Ophthalmol Soc > Volume 55(1); 2014 > Article
Journal of the Korean Ophthalmological Society 2014;55(1):59-65.
DOI: https://doi.org/10.3341/jkos.2014.55.1.59    Published online January 15, 2014.
Utility of the Noncontact Specular Microscopy for Measurements of Central Corneal Thickness.
Young Seong Yang, Jae Woong Koh
Department of Ophthalmology, Chosun University College of Medicine, Gwangju, Korea. ophkoh@hanmail.net
중심각막두께측정에 대한 비접촉경면현미경의 유용성
양영성⋅고재웅
Department of Ophthalmology, Chosun University College of Medicine, Gwangju, Korea
Abstract
PURPOSE
To evaluate the efficacy of noncontact specular microscopy (NCSM) by comparing the measurement of central corneal thickness (CCT) to the measurement with anterior segment optical coherence tomography (AS-OCT) and ultrasound pachymetry (USP). METHODS: One examiner measured the CCT of 50 eyes of 50 healthy young subjects using NCSM, AS-OCT, and USP. The mean values and correlations were analyzed. RESULTS: The mean CCT value was 546.92 +/- 32.06 microm with NCSM, 535.24 +/- 30.54 microm with AS-OCT, and 546.38 +/- 30.70 microm with USP. The CCT measurements with NCSM and USP were significantly thicker than with AS-OCT (p < 0.001, p < 0.001, respectively). There were no significant differences between the measurements obtained with NCSM and USP (p = 0.505). The 3 instruments were significantly correlated (r > 0.900 in all groups, p < 0.001 in all groups). CONCLUSIONS: CCT measurements of healthy eyes using NCSM are more correlated with USP than AS-OCT. The CCT measurement using NCSM is a better alternative for USP than AS-OCT.
Key Words: Anterior segment optical coherence tomography;Central corneal thickness;Noncontact specular microscopy;Ultrasound pachymetry


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