Guichard MM, et al. - A case series of patients with cystoid macular oedema (CME) due to branch or central retinal vein occlusion (BRVO, CRVO) was examined to assess the efficacy and outcome predictors of ranibizumab using a spectral-domain optical coherence tomography (SD-OCT)-driven treat-and-extend regimen (TER) vs SD-OCT-driven pro re nata regimen (PRN). Better morphological outcome was provided by TER using more injections, as compared with PRN.