Figure 3. Comparison of oxygen saturation for occluded vessels with unaffected vessels and contralateral eye in BRVO groups.

A: Significantly increased SaO₂-A and SaO₂-AV can be seen in occluded vessels in ischemic BRVO group (P<0.01), SaO₂-V in occluded vessels a little higher than unaffected vessels in ischemic BRVO eye (though no significant difference); B: No significant differences were found between SaO₂-V, SaO₂-A and SaO₂-AV within non-ischemic BRVO group. ^aStatistically significant difference P<0.05; ^bStatistically significant difference P<0.01.