Relationship between corneal biomechanical properties and structural biomarkers in patients with normal-tension glaucoma: a retrospective study

Table 3 Pearson correlation coefficients for ophthalmic variables and ONH parameters in normal subjects

	Linear cup-to-disc ratio		Rim area		Rim volume		Mean RNFL thickness
	r	P value	r	P value	r	P value	r	P value
Age	0.166^a	0.111	−0.133^a	0.205	−0.307^a	0.003	−0.403^a	<0.001
Axial length	−0.223	0.032	0.080	0.445	0.151	0.150	0.167	0.110
Disc area	0.363^a	<0.001	0.371^a	<0.001	−0.015^a	0.890	−0.348^a	0.001
SE	0.232^a	0.025	−0.125^a	0.234	−0.300^a	0.003^†	−0.371^a	<0.001
CCT	−0.071	0.501	−0.022	0.833	−0.002	0.987	0.100	0.339
CH	0.016	0.878	0.022	0.832	0.034	0.745	0.024	0.819
CRF	0.014	0.895	0.001	0.996	0.018	0.863	0.023	0.824
GAT	−0.068	0.520	−0.090	0.393	−0.022	0.834	0.053	0.617

^aSpearman’s rho
CCT Central corneal thickness, CH Corneal hysteresis, CRF Corneal resistance factor, GAT Goldmann applanation tonometry, HRT Heidelberg retina tomograph, ONH optic nerve head, RNFL Retinal nerve fibre layer, SE Spherical equivalent

ISSN: 1471-2415