Table 3.

The mean retinal nerve fiber layer thickness/vessel density ratio in each group.

	Control group	DM group	P value
RNFL/VD full area	5.28 ± 0.49	5.40 ± 0.51	0.016
RNFL/VD outer ring	5.11 ± 0.47	5.22 ± 0.53	0.033
RNFL/VD inner ring	5.48 ± 0.62	5.57 ± 0.70	0.262
RNFL/PD full area	2.07 ± 0.21	2.16 ± 0.43	0.006
RNFL/PD outer ring	2.01 ± 0.19	2.07 ± 0.28	0.019
RNFL/PD inner ring	2.09 ± 0.24	2.12 ± 0.28	0.281

Significant values are in bold.

RNFL retinal nerve fiber layer, VD vessel density, PD perfusion density.