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. Author manuscript; available in PMC: 2020 Jun 1.
Published in final edited form as: Ophthalmol Retina. 2019 Mar 11;3(6):489–499. doi: 10.1016/j.oret.2019.02.002

Figure 1.

Figure 1.

Early Treatment Diabetic Retinopathy Study (ETDRS) grid regions used for (A) 3mm circle, (B) 3mm ring, and (C) 6mm circle regions. Vessel density and perfusion density were averaged over the highlighted blue area for each respective region.