Table 4 Correlation coefficients and p levels of the retrobulbar haemodynamics and stereometric parameters of the optic disc.

	Rim area	Rim volume	Cup shape measure	RNFL cross‐sectional area
OA PSV (cm/s)	0.19	0.12	−0.23	−0.08
OA EDV (cm/s)	0.11	0.02	−0.17	−0.15
OA RI	0.09	0.10	−0.19	0.01
CRA PSV (cm/s)	0.50; p<0.001	0.51; p<0.001	−0.29	0.39; p = 0.005
CRA EDV (cm/s)	0.40; p = 0.004	0.39; p = 0.005	−0.18	0.25
CRA RI	0.09	0.08	−0.11	0.11
PCA PSV (cm/s)	0.04	−0.03	−0.19	−0.11
PCA EDV (cm/s)	0.19	0.10	−0.29	−0.06
PCA RI	−0.18	0.15	0.13	0.04
Central retinal vein minimum velocity (cm/s)	0.39; p = 0.005	0.56; p<0.001	−0.33	0.49; p<0.001
Central retinal vein maximum velocity (cm/s)	0.15	0.11	−0.10	0.08

CRA, central retinal artery; EDV, end‐diastolic velocity; OA, ophthalmic artery; PCA, posterior ciliary arteries; PSV, peak systolic velocity; RI, resistive indices.

A p value < 0.001 was considered significant after Bonferroni's adjustment for multiple comparisons.