Repeatability and Reproducibility of Intraocular Pressure and Dynamic Corneal Response Parameters Assessed by the Corvis ST

Table 1

Corvis ST repeatability and reproducibility IOP and DCR indices.

	Mean	Repeatability			Reproducibility
		ζw	CV	CR	ζw	CV	CR
IOP (mmHg)	14.73	0.98	0.066	2.7146	1.12	0.076	3.1024
bIOP(mmHg)	14.57	0.89	0.061	2.4653	1.05	0.072	2.9085
DA Max (mm)	1.09	0.04	0.038	0.1108	0.06	0.057	0.1662
DefA Max (mm)	0.91	0.03	0.037	0.0831	0.04	0.053	0.1108
DAratio in 2 mm	4.29	0.13	0.032	0.3601	0.23	0.054	0.6371
DAratio in 1 mm	1.57	0.019	0.012	0.05263	0.025	0.012	0.06925
Integrated radius (mm^−1)	8.17	0.26	0.031	0.7202	0.31	0.038	0.8587
Maximum inverse radius (mm^−1)	0.139	0.003	0.024	0.00831	0.006	0.046	0.01662
A1 velocity (m/s)	0.15	0.008	0.054	0.02216	0.012	0.079	0.03324

IOP: intraocular pressure; bIOP: biomechanical-corrected IOP; DA Max: maximum deformation amplitude; DefA Max: maximum deflection amplitude; DAratio: deformation amplitude ratio; integrated radius: integrated sum of inverse radius between the first and second applanation events; maximum inverse radius: inverse concave radius at the highest concavity moment; A1 velocity: speed of the corneal apex at applanation.