Although both materials are safe, fat filling is the most choice.
After all, it is autologous tissue, which is more acceptable psychologically. At the same time, fat will last longer than hyaluronic acid after it survives.
However, due to the particularity of the surgical site, the requirements for the dean's technology and injection materials are very strict, which is why many hospitals do not recommend injecting hyaluronic acid. After all, close to the eyeball, a little carelessness will lead to eye damage.
Autologous fat is very strict with doctors in orbital surgery. The extracted fat should be filled to the position where the eye socket itself exists. If fat is mistakenly filled into the diaphragm layer of the orbit, the eyelid will be uneven or too thick after operation.
Although the operation has greatly improved the eye shape, it is still very important to carefully choose the doctor who will operate on you!
I hope my suggestion is helpful to you and everything goes well ~