Figure 2 | Scientific Reports

Figure 2

From: Characterizing Branching Vascular Network Morphology in Polypoidal Choroidal Vasculopathy by Optical Coherence Tomography Angiography

Figure 2

Three distinct patterns were identified from BVN on OCTA. Type 1: “The Trunk pattern”: presence of one or more main trunk of neovascular vessel and may have radiated branches pointing toward periphery of the vascular network. (c) The main trunk enlarged after the combination treatment while the anastomosing network shrank. (e) Type 2: “The Glomeruli pattern”: a vascular network with intensely interconnecting anastomosis, but without visible major trunk. (i) The vasculature became finer after combined therapy. (k) Type 3: “The Stick pattern”: localized fine neovascular network without definite pattern. (o) The vasculature remained after combined therapy. (q) The SRF recurred 6 months after treatment (arrowhead) in Type 2 and 3, but resolved in type 1 completely. There was presence of drusens in fundus photography in type 1 (arrow) and exudation in type 1 and 3 (empty arrow).

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