Figure 1.

Parafoveal retinal vessel density measurement. En face OCTA images of the SCP (left), DCP (middle), and full retinal thickness angiogram (right) of a healthy patient. Green segmentation boundaries are shown below on cross-sectional OCT. The parafovea is defined as the area between the two yellow circles on each angiogram (diameters of 1 and 3 mm). The density measurements are reported as a percentage of total vessels occupying the parafovea for each layer.