Table 2.

The correlation coefficient (r) of the circulatory parameters versus dioptry and axial length

	Dioptry		Axial length
	r	p Value	r	p Value
CRA
PSV	0.55	<0.0001	−0.49	0.0002*
EDV	0.37	0.007	−0.26	0.064
MV	0.54	<0.0001	−0.46	0.0005*
RI	0.29	0.034	−0.34	0.013*
CRV
PSV	0.34	0.015	−0.23	0.10
EDV	0.29	0.040	−0.14	0.34
MV	0.33	0.018	−0.17	0.25
RI	0.12	0.42	−0.12	0.38
PCA
PSV	0.35	0.010	−0.27	0.053
EDV	0.36	0.008	−0.20	0.16
MV	0.39	0.003	−0.27	0.054
RI	0.15	0.30	−0.17	0.23

r = correlation coefficient; CRA =central retinal artery; CRV = central retinal vein; PCA = posterior ciliary artery; PSV = peak systolic velocity; EDV = end diastolic velocity; MV =mean velocity, RI = resistivity index ; *statistically significant.