1. Comparison of corneal elevation and pachymetry measurements made by two state of the art corneal tomographers with different measurement principles

    Comparison of corneal elevation and pachymetry measurements made by two state of the art corneal tomographers with different measurement principles

    Purpose To compare corneal tomography measurements (elevation and pachymetry) as made by two corneal tomographers: Pentacam AXL and CASIA 2. Material and methods The devices were used in a standard measuring mode. 77 normal eyes were measured five times with both devices. The data maps for anterior and posterior corneal elevation and pachymetry were exported and analyzed. Repeatability and average values were calculated for each valid data point on the exported data maps. We also calculated a corrected repeatability of the elevation data maps by removing rotation, tilt, and decentration through realignment of the elevation measurement of each eye prior ...

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