Fig. 2From: Choroidal vascular changes in retinitis pigmentosa patients detected by optical coherence tomography angiographyThree-dimensional choroidal vascularity index (CVI) maps: a, CVI color-coded A-scan map from a normal control eye; b, numeric CVI ETDRS map from an RP patient; c, CVI color-coded A-scan map from the same RP patientBack to article page