Features of neovascularization in pachychoroid neovasculopathy compared with type 1 neovascular age-related macular degeneration on optical coherence tomography angiography

To compare neovascular membrane features of pachychoroid neovasculopathy (PNV) and type 1 neovascular age-related macular degeneration (nAMD) using optical coherence tomography angiography (OCTA). Retrospective study. We assessed 34 treatment-naive eyes with a diagnosis of PNV and 36 treatment-naive eyes with a diagnosis of type 1 nAMD. Morphological patterns of neovascular membranes were categorized, and lesion sizes and flow areas were calculated by using en face images on the AngioVue (Optovue) OCTA system. Statistically significant differences were found between groups in age (P=0.001), baseline best corrected visual acuity (P=0.005), and baseline subfoveal choroidal thickness (P