Reconstructed 3D images of the choroidal vasculature of the left eye of a 25-year-old woman. (A) Vessels in OCT-S, viewed from the vitreous side. (B) Vessels in OCT-S, viewed from the scleral side. (C) Vessels in OCT-A, viewed from the vitreous side. (D) Vessels in OCT-A, viewed from the scleral side. (E) An image combining (A) and (C). (F) An image combining (B) and (D). The dashed lines in (A, B, E, F) mark the same region of the choroid. Branching vessels appear more frequently in (A) than in (B). More vessels delineated by OCT-A can be seen in (E) than in (F).