Journal of Ophthalmology / 2015 / Article / Tab 6

Research Article

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

Table 6

Interdevice differences of the two devices in healthy corneas.

  PentacamSirius values
Mean ± SD

Pachymetry (µm)
 Apex554.83 ± 42.85588.23 ± 69.03<0.0001
 Thinnest point549.44 ± 38.34539.35 ± 45.43<0.0001
Keratometry ant. surface (mm)
 3 mm flat meridian7.836 ± 0.3187.793 ± 0.324<0.0001
 3 mm steep meridian7.708 ± 0.3167.661 ± 0.334<0.0001
 5 mm flat meridian7.878 ± 0.3207.797 ± 0.323<0.0001
 5 mm steep meridian7.747 ± 0.3147.678 ± 0.328<0.0001
 7 mm flat meridian7.999 ± 0.3327.830 ± 0.325<0.0001
 7 mm steep meridian7.852 ± 0.3097.711 ± 0.322<0.0001
Keratometry back surface (mm)
 3 mm flat meridian6.571 ± 0.4366.669 ± 0.561<0.0001
 3 mm steep meridian6.295 ± 0.3366.264 ± 0.4290.337

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