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

Table 2

Interobserver variability of keratometry in healthy corneas (ICC = intraclass correlation coefficient).

	ICC
	Pentacam	Sirius
Flat meridian 3 mm to the apex	0.998	0.995
Steep meridian 3 mm to the apex	0.999	0.993
Flat meridian 5 mm to the apex	0.999	0.997
Steep meridian 5 mm to the apex	0.999	0.994
Flat meridian 7 mm to the apex	0.999	0.998
Steep meridian 7 mm to the apex	0.999	0.994
Back surface flat meridian 3 mm to the apex	0.993	0.971
Back surface steep meridian 3 mm to the apex	0.987	0.968