There are no official guidelines to assist in answering this question. I will search for relevant research papers instead.
From the Research
Fat Survival in Blepharoplasty
- The percentage of fat transferred during blepharoplasty that survives is not directly stated in the provided studies 1, 2, 3, 4, 5.
- However, the studies discuss various techniques for fat grafting and transposition in blepharoplasty, including fat grafting for hollow upper eyelids 1, orbital fat realignment and correction of nasojugal groove in lower lid blepharoplasty 2, transconjunctival lower eyelid blepharoplasty with fat transposition above the orbicularis muscle 3, volumetric rejuvenation of the tear trough with repo and Ristow 4, and transcutaneous lower eyelid blepharoplasty with micro-autologous fat transplantation 5.
- These studies report significant improvements in lower eyelid aesthetics and correction of tear trough abnormalities, with high patient satisfaction and long-term survival of the fat grafts 3, 5.
- However, the exact percentage of fat survival is not provided in these studies, and further research would be needed to determine this specific outcome.