Evaluation of rebound tonometer iCare IC200 as compared with IcarePRO and Goldmann applanation tonometer in patients with glaucoma

Table 4 Effects of age, axial length, corneal curvature, and central corneal thickness on IOP measurement with each tonometer^a

Parameter	GAT		IcarePRO		IC200-single		IC200-continuous
Parameter	Coefficient	P value	Coefficient	P value	Coefficient	P value	Coefficient	P value
Sitting
Age	0.022	0.34	−0.022	0.39	−0.0028	0.91	0.029	0.91
Central corneal thickness	0.024	0.0021	0.028	0.0012	0.028	0.0011	0.031	0.00041
Corneal curvature	0.29	0.73	0.15	0.87	1.10	0.19	1.21	0.19
Axial length	0.0031	0.98	0.20	0.21	0.13	0.42	0.13	0.41
Supine
Age	–	–	0.016	0.60	0.0011	0.97	0.015	0.67
Central corneal thickness	–	–	0.025	0.017	0.031	0.014	0.032	0.0097
Corneal curvature	–	–	−0.29	0.79	1.21	0.36	1.38	0.30
Axial length	–	–	0.28	0.15	0.072	0.75	0.16	0.48

ISSN: 2326-0254