The thin eyelid skin may heal better than other body areas. Scarring is typically minimal and only visible when you close your eyes and know where and what to look for on the eyelids. Upper blepharoplasty may leave small incision lines in the natural eyelid crease. Lower eyelid surgery may leave no visible scarring because the incision is either inside the lower eyelid or concealed beneath the eyelash line. The visibility of scars often comes down to your genetics and the type of procedure. The eyelids usually heal well, and many people have difficulty finding the incision line unless they know where to look.