Figure 2
From: Factors predicting final visual outcome in quiescent proliferative diabetic retinopathy
(A) Ultra-widefield fundus photography of a patient with quiescent proliferative diabetic retinopathy after panretinal photocoagulation. (B) Skeletonized image after binarization. Parafovea was set between a 1.5 mm diameter circle and a 3 mm diameter circle, and perifovea was set between a 3 mm diameter circle and a 4.5 × 4.5 mm square. (C) FAZ area of superficial capillary plexus. (D) FAZ area of deep capillary plexus. (E) Parafoveal vessel density of superficial capillary plexus at macula. (The outer circle has a diameter of 3.0 mm and the inner circle, 1.0 mm, centered at the fovea). (F) Peripapillary vessel density (The outer circle has a diameter of 2.5 mm and the inner circle 1.0 mm, centered at the optic disc).
