Test Description: The artery to vein ratio (A/V)
is the ratio of the artery diameter to the vein diameter
(measured before the bifurcation of the vessels). The A/V ratio is measured
and calculated according to the fundus images with Kowa COMIT+ software.
Many diseases will influence the ratio, i.e., diabetes, cardiovascular
disorders, papilledema, optic atrophy.
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