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May 26, 2005
Assessment of central corneal thickness using optica ltomography coherence
JCRS APRIL 2005Purpose
To demonstrate the capability of model OCT3 evaluate CCT in normal human corneas in vivo and compare the results with the those of standard ultrasound (US) pachymetry and Orbscan
The CCT in 22 eyes of 11 subjects was determined with the OCT3 (Carl Zeiss Meditec), Orbscan (Bausch & Lomb, Inc.), and US pachymetry (DGH Technology, Inc.). Three central corneal scans of each eye were obtained using the OCT3. First, OCT3 data were processed using the standard OCT software program (OCT3std). Second, OCT3 raw data were exported and measurements were repeated using Scion Image for Windows program (OCT3sci). The OCT3 and Orbscan results were compared with the mean of 5 US pachymetry measurements in each eye.
Conclusion
Results show the OCT3 is an accurate, noninvasive, and reproducible technique for evaluation of CCT.
Posted by alireza habibollahi at May 26, 2005 07:46 AM