Table 4.

The baseline values of macular vascular geometric parameters of both the sexes in the four age groups.

Age groups	Group 1		Group 2		Group 3		Group 4
	Male	Female	Male	Female	Male	Female	Male	Female
Fractal dimension, Mean ± SD, Df
Whole	1.400 ± 0.027	1.401 ± 0.027	1.399 ± 0.032	1.390 ± 0.038	1.398 ± 0.036	1.378 ± 0.032	1.382 ± 0.038	1.363 ± 0.037
Inner ring	1.128 ± 0.068	1.124 ± 0.061	1.116 ± 0.074	1.088 ± 0.086	1.127 ± 0.081	1.065 ± 0.083	1.090 ± 0.080	1.043 ± 0.099
Outer ring	1.320 ± 0.024	1.322 ± 0.027	1.321 ± 0.027	1.315 ± 0.033	1.318 ± 0.032	1.304 ± 0.029	1.307 ± 0.033	1.290 ± 0.030
Vessel area rate, Mean ± SD, VAR
Whole	0.0142 ± 0.0016	0.0143 ± 0.0018	0.0144 ± 0.0018	0.0139 ± 0.0020	0.0140 ± 0.0019	0.0129 ± 0.0019	0.0133 ± 0.0021	0.0120 ± 0.0018
Inner ring	0.0023 ± 0.0005	0.0022 ± 0.0004	0.0022 ± 0.0005	0.0020 ± 0.0005	0.0022 ± 0.0005	0.0018 ± 0.0005	0.0021 ± 0.0005	0.0017 ± 0.0006
Outer ring	0.0119 ± 0.0014	0.0121 ± 0.0016	0.0122 ± 0.0015	0.0119 ± 0.0017	0.0117 ± 0.0015	0.0110 ± 0.0016	0.0112 ± 0.0017	0.0103 ± 0.0014
Average vessel diameter, Mean ± SD, Dm
Whole	0.145 ± 0.011	0.149 ± 0.013	0.149 ± 0.011	0.148 ± 0.012	0.145 ± 0.011	0.142 ± 0.011	0.142 ± 0.011	0.139 ± 0.013
Inner ring	0.121 ± 0.016	0.117 ± 0.014	0.123 ± 0.014	0.117 ± 0.016	0.117 ± 0.014	0.109 ± 0.016	0.115 ± 0.014	0.111 ± 0.017
Outer ring	0.149 ± 0.012	0.154 ± 0.015	0.153 ± 0.012	0.152 ± 0.013	0.151 ± 0.0119	0.147 ± 0.0126	0.146 ± 0.012	0.143 ± 0.014
Tortuosity, Mean ± SD, τn
Whole	2.757 ± 0.144	2.765 ± 0.151	2.729 ± 0.143	2.745 ± 0.134	2.737 ± 0.164	2.769 ± 0.183	2.743 ± 0.141	2.794 ± 0.142
Inner ring	2.921 ± 0.300	2.961 ± 0.343	2.990 ± 0.468	2.930 ± 0.308	2.910 ± 0.291	2.918 ± 0.397	2.945 ± 0.257	2.938 ± 0.425
Outer ring	2.709 ± 0.148	2.701 ± 0.161	2.662 ± 0.158	2.697 ± 0.167	2.694 ± 0.183	2.710 ± 0.180	2.691 ± 0.149	2.735 ± 0.184