Table 2. Comparison of oxygen saturation and vessel diameter for occluded vessels with unaffected vessels and contralateral eye in BRVO groups.

Groups	Ischemic BRVO				Non-ischemic BRVO
	Affected eye		Contralateral eye vessels	P	Affected eye		Contralateral eye vessels	P
	Occluded vessels	Unaffected vessels			Occluded vessels	Unaffected vessels
SaO2-V (%)	60.8±9.4	56.9±10.4	62.4±10.9	0.128	57.5±14.5	57.7±10.9	58.8±11.1	0.538
SaO2-A (%)	106.0±14.3	94.0±6.8a	86.1±16.5c	<0.001	100.3±19.0	92.9±9.1	92.1±8.4	0.264
SaO2-AV (%)	45.2±15.8	37.1±11.2a	23.7±18.8c	<0.001	42.8±22.9	35.1±9.7	33.3±11.1	0.867
VD (pixels)	14.5±1.9	15.5±2.3	14.2±2.3	0.368	14.8±2.6	14.7±1.9	15.5±1.3	0.467
AD (pixels)	12.3±2.1	13.3±1.5	13.2±1.1	0.065	13.4±1.8	13.7±1.4	13.3±1.3	0.827

Significantly increased SaO₂-A and SaO₂-AV can be seen in occluded vessels in ischemic BRVO group (P<0.05). Data were collected according first kind of analysis in method. Friedman's test was performed for comparison, P<0.05 was considered statistically significant. ^aSignificant difference between occluded vessels and unaffected vessels in occluded eye in ischemic BRVO group according to Dunn's post test (P<0.05); ^cSignificant difference between occluded vessels and vessels in corresponding quadrant of contralateral eye in ischemic BRVO group according to Dunn's post test (P<0.05). SaO₂-V: Venous oxygen saturation; SaO₂-A: Arterioles oxygen saturation; SaO₂-AV: A-V difference oxygen saturation; VD: Venous diameter; AD: Arterioles diameter.