Esaki Y, Hirano Y, Kurobe R, et al. - Researchers conducted this retrospective, observational, consecutive case series to classify microaneurysms (MAs) and explore the connections with retinal edema in eyes with branch retinal vein occlusion (BRVO). Eyes with MAs were enrolled due to BRVO that underwent optical coherence tomography angiography (OCTA). Twenty-four eyes of 23 patients (12 men, 11 women; mean age, 68.0 years) have been registered. In total, 244 MAs were detected on the OCTA images. The mean retinal thickness decreased significantly after treatment, but the mean MA size remained unchanged. OCTA allows for morphologic classification, three-dimensional analysis, and investigation of the longitudinal changes in MAs with noninvasive volumetric quantification, leading to a better understanding of MAs pathology in eyes with BRVO.