Iida Y, et al. – The morphology of the retinal vasculature in eyes with branch retinal vein occlusion (BRVO) utilizing optical coherence tomography (OCT) angiography is examined in this study. The outcomes of this study propose that BRVO characterized by venous overcrossing may be more prevalent than previously reported and that there is an important relationship between nonperfusion area (NPA) size and arteriovenous (AV) crossing pattern.