How fast after fillers can blindness occur?

If there is embolization of a gel filler into the central retinal artery during a treatment, change in vision may happen immediately. This is a rare complication of injectable gel fillers that is not associated with microdroplet Silikon1000 - a permanent FDA approved liquid silicone filler. Silikon1000 is also not associated with necrosis, or dead skin from blocking an artery - the size of a Silikon-1000 molecule is smaller than a red blood cell so vascular occlusion or blindness does not occur when used properly. Thank you. Dr Joseph

Hi @Lili786! Although this is a very rare complication, blindness from a vascular occlusion would happen immediately. I hope this was helpful.

It would happen immediately.  Very rare though and even more so when the doctor uses a cannula to inject rather than a needle.