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First Author: J.Koh SOUTH KOREA
Co Author(s): C. Choi
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To compare the accuracy of central corneal thickness (CCT) measured by noncontact specular microscopy (NCSM), anterior segment optical coherence tomography (AS-OCT), and ultrasound pachymetry (USP).
Department of Ophthalmology, Chosun University College of Medicine, Gwangju, Republic of Korea
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.
The average measurements of CCT by NCSM, AS-OCT, and USP were 546.92 ±32.06 ?m, 535.24 ±30.54 ?m, and 546.38 ±30.70 ?m, repectively. The CCT measurement by NCSM and USP were significantly thicker than by AS-OCT(p<0.001, p<0.001). There was no significant difference between the measurements obtained by NCSM and USP(p=0.746). The three instruments have significant correlation with each other(r>0.900 in all groups, p<0.001 in all groups).
CCT measurements in healthy eyes by NCSM are more correlated with USP than AS-OCT. The measurement of the CCT using NCSM is an appropriate method in healthy eyes.