Moussa M, et al. - Researchers conducted this retrospective observational case series to assess the effectiveness of swept –source optical coherence tomography angiography (SS-OCTA) in grading macular perfusion in retinal vein occlusion (RVO). There were 144 eyes of 138 patients in the research. Branch retinal vein occlusion (BRVO) was the most common type of RVO. In all parameters tested, the superficial capillary plexus (SCP) and the deep capillary plexus (DCP) did not correlate with each other. According to findings, SS-OCTA is more accurate in defining the extent and location of maximum ischemic insult after RVO vs FFA, making it a more efficient grader for ischemic damage in the posterior pole. Significant predictors of poor visual outcome were increased CMT, DRIL, and DROL on SS-OCT, and SCP and DCP ischemia on SS-OCTA.