Optical Coherence Tomography and Ultrasound Biomicroscopy Imaging of Opaque Corneas
Purpose: The purpose was to determine the interchangeability of ultrasound biomicroscopy (UBM) and anterior segment optical coherence tomography (AS-OCT) for corneal opacity depth measurement. Methods: Twenty-six eyes of 26 consecutive patients with corneal opacities were examined by both AS-OCT and UBM. The corneal thickness and the corneal opacity depth were measured and compared. The interchangeability was determined by Bland-Altman plotting. Results: The difference in the full corneal thickness and in the corneal opacity depth between OCT and UBM was 5 +/- 7 [mu]m and -1 +/- 8 [mu]m, respectively. There were strong correlations and no significant differences between the paired ...
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