Table 2. Peripapillary and Perifoveal Retinal Perfusion in two Groups.
Variables | Non tessellated group | Tessellated group | P Value* |
---|---|---|---|
(N = 35) | (N = 35) | ||
Peripapillary Perfusion | |||
RNFL flow index | 0.061 ± 0.007 (0.045 to 0.077) | 0.055 ± 0.009 (0.037 to 0.074) | 0.006 |
RNFL vessel density (%) | 65.9 ± 5.2 (51 to 73) | 61.8 ± 7.3 (43 to 74) | 0.010 |
Retinal flow index | 0.092 ± 0.008 (0.080 to 0.114) | 0.086 ± 0.010 (0.067 to 0.108) | 0.012 |
Retinal vessel density (%) | 86.4 ± 3.7 (80 to 92) | 83.7 ± 5.0 (71 to 93) | 0.018 |
Perifovea Perfusion | |||
Superficial flow index | 0.028 ± 0.006 (0.016 to 0.043) | 0.028 ± 0.006 (0.016 to 0.041) | 0.711 |
Superficial vessel density (%) | 33.1 ± 6.9 (20 to 48) | 34.0 ± 6.5 (20 to 48) | 0.646 |
Retinal flow index | 0.060 ± 0.007 (0.046 to 0.077) | 0.062 ± 0.008 (0.044 to 0.081) | 0.256 |
Retinal vessel density (%) | 67.5 ± 5.8 (56 to 78) | 68.8 ± 6.3 (55 to 80) | 0.234 |
RNFL = retinal nerve fiber layer. Numbers displayed are mean ± standard deviation (range).
* Differences between groups were tested with the Kruscal-Wallis test.