Is there a risk of blindness from filler injected to augment the chin and/or in receded jaw line (below ears-mandible)?

All filler injections have the potential to get into a blood vessel and damage the skin in the area of the blood vessel or travel into the vessels of the eye and cause permanent blindness. It is theoretically possible, but if you have proper technique and use reversible fillers in these locations (HA type like Restylane and Juvederm and Belotero) the chance is very small. I also recommend Nova Threads. I suggest going to a filler expert for treatment. Best, Dr. Emer

Vascular complications are obviously the most feared risk of injectable fillers.  While exceedingly rare, blindness has been reported from injections into areas near or around the eyes.  Generally speaking, these include the upper eyelids, tear troughs, glabella, and nose.  The risk is significantly reduced by using blunt-tipped cannulas instead of needles.  Although theoretically possible in any area of the face, the risk is minimal in other locations.  The two most important factors are injector knowledge and injection technique. Hope this helps.

There is a risk of vascular occlusion anywhere on the face filler is injected but blindness is very rare complication particularly in experienced hands. The chin, is a lower risk area because the filler is usually placed on the bone. Slow, low pressure injections reduce risk of certain vascular complications as does cannula use in my opinion. 

Hi,
Theoretically, there is a risk of blindness with injections anywhere in the face. In reality, the risk is extremely low, especially in areas where the filler is injected directly on the bone (chin, mandible). 
Best,