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Choroidal features in patients with aFIPED (A) showed greater choroidal thickness and choroidal area, and lower CVI in comparison to vFIPED (B). Dilated pachyvessels impose a mechanical pressure on choriocapillaris which subsequently causes attenuation of the inner choroid, VEGF production (stars), and new vessel formation. SFCT: Subfoveal choroidal thickness, FIPED: Flat irregular pigment epithelial detachment.
