Research Article

Comparison of Anterior Segment Measurements with Scheimpflug/Placido Photography-Based Topography System and IOLMaster Partial Coherence Interferometry in Patients with Cataracts

Table 2

The mean difference, limits of agreement (LoA), paired -test for these differences, and their significance for difference parameters between Sirius Scheimpflug/Placido photography-based topography system and IOLMaster partial coherence interferometry.

Device pairingsMean difference ± SD value95% LoA

ACD (mm)<0.05−0.16 to 0.34
Kf (D)<0.05−0.26 to 0.69
Ks (D)<0.05−0.34 to 0.58
Km (D)<0.05−0.20 to 0.54
Axis (°)0.813−23.96 to 23.36
WTW (mm)<0.05−1.15 to 0.37

ACD = anterior chamber depth, Kf = flattest keratometry, Ks = steepest keratometry, Km = mean keratometry, WTW = white to white, and SD = standard deviation.