Figure 2: Projection-resolved optical coherence tomography angiography (PR-OCTA) in the left eye of a normal study participant.

Four 4.5 × 4.5 mm OCTA volumes were montaged. (A) 14.2 × 4.5 mm en face OCTA of the inner retina. The cross-sectional image (B) is taken along the maculopapillary axis (green line joining the centers of the fovea and optic disc). (B) Color-composite cross-sectional OCTA (14.2 × 0.7 mm) showing retinal (purple) and choroidal (red) blood flow superimposed on gray scale reflectance image of static structures. The white rectangles in (A) and (B) represent the 0.1 × 0.8 × 0.25 mm (x × y × z) sampling regions at locations in the peripapillary, parafoveal (green circle), perifoveal (blue circle), and peripheral (7 mm temporal to fovea) retina for capillary density measurements.