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. 2016 Apr 19;16:43. doi: 10.1186/s12886-016-0217-1

Fig. 5.

Fig. 5

Retinal vessel diameter (pixels; left y-axis) of arterioles (red dots) and venules (blue squares), and AVR (right y-axis) with increasing diabetes duration (dark triangles). There was a significant decrease in A_diameter, an increase in V_diameter, and smaller AVR with increasing diabetes duration