I once saw a photo of a patient at a national meeting who had fat grafts to the lower lids and gained 50 lbs after. Her eyes looked like Japanese goldfish. They were horrifying.
That is why I only use Restylane or Juvederm there - the fat REMEMBERS where it came from (ie. tummy or thighs) and gains or loses weight as if it were in tis original home.
Web reference: http://www.randcosmeticsugery.com