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To compare three different methods of measuring corneal thickness (CT) and anterior chamber depth (ACD).

Prospective clinical trial (Medical University of Vienna, Austria).

Central CT (CCT), CT at four peripheral points, and central ACD were measured in 88 eyes of 44 healthy subjects with the Pentacam (rotating Scheimpflug camera; Oculus, Wetzlar, Germany), Orbscan I (scanning-slit topography system; Orbtek Inc, Salt Lake City, Utah, USA), and AC-Master (partial coherence interferometry; Zeiss Meditec, Jena, Germany), and the results were compared.

The upper (lower) limits of agreement for CCT measurements were 7.9 (−22.2) μm between AC-Master and Pentacam, 17.6 (−32.5) μm between AC-Master and Orbscan, and 25.2 (−25.9) μm between Pentacam and Orbscan. Correlation was high between all three methods (r = 0.94 to 0.97). The upper and lower limits …