Fig. 1

Optical coherence tomography angiography image of the optic nerve head region and macular region with capillary density measurements. a The vessel density (VD) measured in the papillary region. The picture identifies the radial peripapillary capillary layer in the papillary region (4.5 × 4.5 mm area), which extends from the upper boundary of the inner limiting membrane to the lower boundary of the nerve fiber layer. b The VD measured in the superficial retinal layer of the macular region (6 × 6 mm area), which extends from approximately 3 μm below the inner limiting membrane to 15 μm below the inner plexiform layer. c The VD measured in the deep retinal layer of the macular region (6 × 6 mm area), which extends from 15 μm below the inner plexiform layer to 70 μm below the inner plexiform layer