Figure 4.

Global and zonal scale assessment of Pearson’s correlation between average retinal sensitivity and skeletonized vessel density (SVD) in the superficial capillary plexus, deep capillary plexus, and full retinal layer across diabetic retinopathy severity globally and in the superior, nasal, inferior, and temporal perifoveal regions (1st through 5th columns). Pearson’s correlation of average retinal sensitivity in the central 1-degree ring and central point with foveal avascular zone area across diabetic retinopathy severity (right-most column). DR = diabetic retinopathy, DM = diabetes mellitus, FAZ = foveal avascular zone, NPDR = non-proliferative diabetic retinopathy, PDR = proliferative diabetic retinopathy.