Canine central corneal thickness measurements via Pentacam‐HR®, optical coherence tomography (Optovue iVue®), and high‐resolution ultrasound biomicroscopy

Considering there is an average of 7.5% normal diurnal variation in canine CCT, a 3.0% difference between Pentacam and SD-OCT values is likely not clinically relevant. However, Pentacam measurements were both statistically and clinically significantly different from UBM and SD-OCT measurements.