Baek J, Lee JH, Lee KM, et al. - This study was undertaken to investigate the effect of choroidal vascular morphology on clinical outcomes in patients with polypoidal choroidal vasculopathy/aneurysmal Type 1 neovascularization. Researchers included a total of 66 eyes with polypoidal choroidal vasculopathy/aneurysmal Type 1. According to the choroidal vascular morphology of the large vessel layer on optical coherence tomography en face images: focal (n = 39) vs diffuse (n = 27) pachyvessels, eyes were subdivided. During the 12-month follow-up, the polypoidal choroidal vasculopathy/aneurysmal Type 1 eyes with a diffuse pattern of pachyvessels needed fewer injections and exhibited a longer injection-free period after rescue photodynamic therapy.