Fig. 1

OCT based classification of ERMs in this cohort, as proposed by Govetto et al. Stage 1 ERM with hyporeflective intraretinal cystoid spaces (ICS). The foveal pit is present and the retinal layers are well-defined. Stage 2 ERM with hyporeflective ICS. The foveal pit is absent but the retinal layers remain well-defined. Stage 3 ERM demonstrating an absent foveal pit, well-defined retinal layers and ectopic inner foveal layers. Those layers represent hyperreflective bands extending from the inner nuclear layer (INL) and inner plexiform layer (IPL) across the foveal region. Stage 4 ERM showing an absent foveal pit, disrupted retinal layers and ectopic inner foveal layers. Stage 0 is a normal retina with no ERM