Journal of Ophthalmology / 2015 / Article / Tab 4

Research Article

Comparison of Two Different Scheimpflug Devices in the Detection of Keratoconus, Regular Astigmatism, and Healthy Corneas

Table 4

Interdevice differences of the two devices in keratoconus patients.

  PentacamSirius values
Mean ± SD

Pachymetry (µm)
 Apex465.87 ± 63.74466.70 ± 87.520.975
 Thinnest point442.27 ± 71.71416.82 ± 76.04<0.0001
Keratometry ant. surface (mm)
 3 mm flat meridian7.096 ± 0.9237.012 ± 0.9550.059
 3 mm steep meridian6.643 ± 0.8736.440 ± 0.967<0.0001
 5 mm flat meridian7.406 ± 0.7167.082 ± 0.863<0.0001
 5 mm steep meridian6.983 ± 0.7226.596 ± 0.872<0.0001
 7 mm flat meridian7.760 ± 0.5647.203 ± 0.771<0.0001
 7 mm steep meridian7.347 ± 0.5956.776 ± 0.796<0.0001
Keratometry back surface (mm)
 3 mm flat meridian5.884  ± 0.7955.938 ± 1.2170.662
 3 mm steep meridian5.235 ± 0.8274.745 ± 1.177<0.0001

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