Fig. 2.

(A) Composite OCT B-scan images with color-coded angiography. Angiography data are overlaid onto the structure images to help graders better visualize the OCT angiography images. Angiography data in the inner retina (between Vitreous/ILM and OPL/ONL) is overlaid as purple, outer retina (between OPL/ONL and IS/OS) as yellow, and choroid (below RPE) as red. (B) Gradient image showing light-to-dark intensity transitions. (C) Inverse gradient image showing dark-to-light intensity transitions.