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Comparison of CCT measured by non-contact specular microscopy, anterior segment OCT and ultrasound pachymetry

Poster Details

First Author: J.Koh SOUTH KOREA

Co Author(s):    C. Choi              

Abstract Details



Purpose:

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).

Setting:

Department of Ophthalmology, Chosun University College of Medicine, Gwangju, Republic of Korea

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 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).

Conclusions:

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.

Financial Disclosure:

NONE

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