Corneal and Epithelial Thickness Mapping: Comparison of Swept-Source- and Spectral-Domain-Optical Coherence Tomography
Objective . To compare the results and repeatability of the corneal thickness (CT) and epithelial thickness (ET) maps provided by Swept-Source-Optical Coherence Tomography with those of Spectral-Domain-OCT in normal eyes. Methods . 30 normal eyes of 30 patients were assessed by 3 trained operators with SS-OCT and SD-OCT. Results . The central and minimum ET obtained with both devices were correlated: central ET, r = 0.86, ; minimum ET, r = 0.72, . Compared with SD-OCT, SS-OCT tended to underestimate these figures by 1.4 and 1.9 μ m on average. The central and minimum CT obtained with both devices were strongly correlated: central CT ...
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