Optic Disc Vascularization in Glaucoma: Value of Spectral-Domain Optical Coherence Tomography Angiography

Table 4

Pearson correlation coefficient matrix for visual field, structural variables, and ONH total vessel density in subjects with glaucoma. MD: mean deviation; PSD: pattern standard deviation; VFI: visual field index; RNFL: retinal nerve fiber layers; GCC: ganglion cell complex; total ONH density: total ONH vessel density; SSI: strength signal index. Statistically significant correlations with total ONH vessel density are in bold.

Variable		Total ONH density	SSI	VFI	PSD 24-2	MD 24-2	GCC	Rim area	RNFL	Age
Total ONH density	r	1
	p	0
SSI	r	0.318	1
	p	0.026	0
VFI	r	0.339	0.248	1
	p	0.017	0.089	0
PSD 24-2	r	−0.192	−0.090	−0.595	1
	p	0.185	0.544	<0.0001	0
MD 24-2	r	0.301	0.202	0.986	−0.685	1
	p	0.038	0.173	<0.0001	<0.0001	0
GCC thickness	r	0.337	0.230	0.580	−0.472	0.532	1
	p	0.017	0.111	<0.0001	0.001	0.000	0
Rim area	r	0.609	0.187	0.622	−0.581	0.628	0.598	1
	p	<0.0001	0.198	<0.0001	<0.0001	<0.0001	<0.0001	0
RNFL thickness	r	0.406	0.201	0.649	−0.533	0.664	0.789	0.661	1
	p	0.003	0.166	<0.0001	<0.0001	<0.0001	<0.0001	<0.0001	0
Age	r	0.166	−0.308	0.268	−0.285	0.350	0.047	0.267	0.244	1
	p	0.248	0.031	0.063	0.047	0.015	0.746	0.061	0.088	0