36 Boyer Boyer D D ,  Heier Heier J J ,  Brown Brown DM DM ,  Clark Clark WL WL ,  Vitti Vitti R R et al. et al.  ( 2012 2012 )  Vascular endothelial growth factor Trap-Eye for macular edema secondary to central retinal vein occlusion: six-month results of the phase 3 COPERNICUS study Vascular endothelial growth factor Trap-Eye for macular edema secondary to central retinal vein occlusion: six-month results of the phase 3 COPERNICUS study . Here, VEGFA is linked to macular retinal edema.