Fig. 2From: Optical coherence tomography angiography characteristics of optic disc melanocytomaVascular density and perfusion density in the normal optic disc, measured using AngioPlex MetrixTM OCTA images. Nine main regions were evaluated for the purposes of this study. The radial peripapillary capillary network was visualized in scans centered on the optic nerve head (ONH) by performing a 6 × 6-mm scan over the nerve (a). The vascular density (d); perfusion density (e)Back to article page