Is there a chance of losing one's sight with upper eyelid surgery.

Blindness with blepharoplasty is very uncommon. If bleeding occurred to the extent that there was pressure on the opthalmic vessels causing occlusion, blindness could occur. It is our advice to avoid anything that causes thinning of the blood two weeks pre and post operatively

Any complication is possible with any facial surgical procedure. With that said vision loss after either upper or lower blepharoplasty performed by an experienced surgeon is incredibly uncommon. This is not something that I have encountered in practice but it has been described.Stephen Weber MD, FACSDenver Facial Plastic Surgeon