Table 3. Comparison of oxygen saturation and vessel diameter of affected eye and contralateral eye in BRVO groups.
| Groups | Ischemic BRVO eye | Contralateral eye | P | Non-ischemic BRVO eye | Contralateral eye | P |
| Central retina | ||||||
| SaO2-V (%) | 61.1±6.3 | 61.3±7.5 | 0.851 | 59.6±8.1 | 61.6±4.6 | 0.554 |
| SaO2-A (%) | 100.7±3.8 | 96.0±6.8 | 0.011 | 98.1±4.8 | 97.5±5.3 | 0.606 |
| SaO2-AV (%) | 39.6±6.6 | 34.8±5.5 | 0.019 | 38.5±7.7 | 35.9±7.3 | 0.213 |
| VD (pixels) | 15.9±1.3 | 15.8±1.6 | 0.778 | 16.1±1.7 | 16.2±1.3 | 0.772 |
| AD (pixels) | 12.4±1.0 | 13.5±1.4 | 0.008 | 13.0±1.6 | 13.5±1.3 | 0.345 |
| Whole retina | ||||||
| SaO2-V (%) | 57.1±9.0 | 58.0±10.3 | 0.975 | 56.7±9.8 | 58.2±7.7 | 0.792 |
| SaO2-A (%) | 96.6±3.9 | 92.5±7.6 | 0.021 | 94.7±5.5 | 93.1±5.3 | 0.443 |
| SaO2-AV (%) | 39.5±9.4 | 34.5±6.0 | 0.093 | 38.0±7.8 | 34.9±7.2 | 0.155 |
| VD (pixels) | 14.8±1.0 | 14.7±1.3 | 0.452 | 15.2±1.4 | 14.7±1.0 | 0.178 |
| AD (pixels) | 12.1±0.7 | 12.7±1.0 | 0.030 | 12.8±1.3 | 12.7±1.0 | 0.970 |
Significantly increased SaO2-A and SaO2-AV can be seen in central and whole retina in ischemic BRVO group (P<0.05). AD in Ischemic BRVO eye was significantly narrower than contralateral eye (P<0.05). No significant differences were found between SaO2-V, SaO2-A and SaO2-AV within non-ischemic BRVO group. VD and AD in both groups showed no significance. No significant difference found between ischemic BRVO group and non-ischemic BRVO group (Data were not shown). Data were collected according second kind of analysis in method. Kruskal-Wallis test were performed for comparison, P<0.05 was considered statistically significant.