Fig. 1

The retinal vein occlusion characteristics observed in fundus and optical coherence tomography (OCT) images include various key indicators. In images (A) and (D), the fundus displays hemorrhagic spots, as denoted by yellow arrowheads. Images (B) and (E) present the average thickness measurements of the ETDRS subfields, corresponding to the region highlighted by the yellow square in the fundus view, with the central subfoveal thickness (CST) represented by the value in the center circle. Images (C) and (F) illustrate OCT biomarkers such as cysts (marked by yellow arrows), disruptions in the ellipsoid zone and interdigitation zone (EZ/IZ) (marked by asterisk), disorganization of the retinal inner layers (DRIL) (marked by pentagram), hyperreflective foci (HRFs) (marked by red arrowheads), and subretinal fluid (SRF) (marked by hash mark).