Comparison of different pachymetry methods Agreement between all the device pairs were highly significant with correlation coefficients of 0.99 between Orbscan IIz and Pentacam, 0.986 between Orbscan IIz and SS-OCT, 0.98 between Orbscan IIz and HHSD-OCT, 0.989 between SSOCT and Pentacam, 0.98 between HHSD-OCT and Pentacam, and 0.979 between SS-OCT and HHSD-OCT ( P < 0.001 for all comparisons).
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Comparability and repeatability of pachymetry in keratoconus using four noncontact techniques.
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