Fig. 4
From: Characterization of the retinal vasculature in fundus photos using the PanOptic iExaminer system
A/V ratio analysis of representative cases of healthy control (HC), diabetes mellitus (DM), and multiple sclerosis (MS) subjects. a-c Retinal photographs with circle defining the measurement. The arrow indicates selected parallel arteriole and venule. d-f Five non-overlapping diameter measurements of arteriole and venule by ImageJ