The Changes of Retinal Saturation after Long-Term Tamponade with Silicone Oil

Table 4

The diameter of the retinal vessels in silicone oil-filled eyes and contralateral eyes before silicone oil removal.

Duration	Arterioles			Venules
	Width (pixels)			Width (pixels)
	SiO^†	Contralateral	P value	SiO	Contralateral	P value
3–6  months ()	11.3 ± 1.1	11.7 ± 0.7	0.102	14.3 ± 1.6	14.3 ± 0.7	0.975
6–9  months ()	11.3 ± 0.8	11.7 ± 0.6	0.067	14.1 ± 1.4	14.2 ± 0.7	0.767
>9 months ()	10.4 ± 0.9	11.8 ± 0.6	<0.001	14.1 ± 1.1	14.4 ± 0.8	0.390
Total ()	11.0 ± 1.0	11.7 ± 0.6	<0.001	14.2 ± 1.4	14.3 ± 0.7	0.516

 ^†SiO = silicone oil-filled eyes.
Compared by paired -test.