Comparison of Retinal Microvessel Blood Flow Velocities Acquired with Two Different Fields of View

Table 2

Retinal blood flow velocity using 20- and 35-degree FOVs.

		Arteriole	Venule
Velocity (mm/s)	20 degrees	3.80 ± 0.37	2.93 ± 0.27
	Inner field	4.05 ± 0.43	3.06 ± 0.28
	Outer field	3.86 ± 0.47	3.24 ± 0.33
	35 degrees	3.99 ± 0.42	3.19 ± 0.30
Velocity ratio	20 degrees/inner field	0.95 ± 0.06	0.96 ± 0.07
	20 degrees/35 degrees	0.95 ± 0.06	0.92 ± 0.07
	Inner/outer	1.05 ± 0.10	0.95 ± 0.06
Vessel segments	20 degrees	20 ± 4	19 ± 2
	Inner field	21 ± 5	20 ± 5
	Outer field	12 ± 7	17 ± 5
	35 degrees	32 ± 10	37 ± 7
Vessel rejection rate (%)	20 degree	8 ± 4	6 ± 4
	35 degrees	10 ± 4	11 ± 4