Fundus Fluorescein angiography (FFA) for left eye. A) Early phase FFA staining demonstrates delayed venous filling. There were massive areas of hypofluorescent areas of capillary non-perfusion of the superotemporal quadrant (red circle) and the superior central region (blue circle). B) Mid phase FFA clearly demonstrated vessel wall staining and hypofluorescence representing capillaries non-perfusion/ dropout (red circle). Collaterals formation could be spotted as well (yellow arrows). There was hyperfluorescence on the nasal side of the optic disc (yellow circle). C-F) Late phase FFA stages, illustrated prominent hypofluorescence and capillary remodelling of the peripheral vasculature superotemporally (red circle). Collaterals formation could be spotted as well (yellow arrows). There is hyperfluorescence superotemporally (green circle). The non-perfusion and blockage superotemporally on FFA corresponded to the intraretinal haemorrhage on the fundus photography in .