Table 1. Blood flow measurements of retinal vesselsa.
| Vessel No. |
S (mm/s) |
A (mm/s) |
D (mm/s) |
PI | RI |
Artery/Vein (A/V) |
|---|---|---|---|---|---|---|
| 1 | 23.81 ± 8.24 | 13.57 ± 1.77 | 3.32 ± 0.07 | 1.50 ± 0.01 | 0.86 ± 0.00 | A |
| 2 | 8.59 ± 2.00 | 5.79 ± 0.19 | 2.99 ± 0.60 | 0.95 ± 0.09 | 0.63 ± 0.02 | V |
| 3 | 32.20 ± 0.83 | 19.59 ± 0.20 | 6.99 ± 0.22 | 1.29 ± 0.00 | 0.78 ± 0.00 | A |
| 4 | 5.68 ± 1.15 | 3.48 ± 0.45 | 1.27 ± 0.67 | 1.29 ± 0.13 | 0.77 ± 0.02 | V |
| 5 | 25.33 ± 25.74 | 13.99 ± 5.39 | 3.87 ± 4.38 | 1.54 ± 0.12 | 0.84 ± 0.01 | A |
| 6 | N/A | N/A | N/A | N/A | NA | V |
| 7 | 50.20 ± 6.57 | 30.53 ± 2.22 | 10.87 ± 0.20 | 1.29 ± 0.00 | 0.78 ± 0.00 | A |
| 8 | 5.97 ± 0.45 | 3.43 ± 0.28 | 0.88 ± 0.16 | 1.51 ± 0.03 | 0.86 ± 0.00 | V |
aS, peak systolic velocity; A, average velocity; D, end diastolic velocity; PI, pulsatility index; RI, resistance index; N/A, not applicable; rates expressed as means ± standard deviations.