I strongly advise against filler injections like Restylane around the eye. The eyelid skin is very thin and the filler is often very visible and shows irregular lumps around the eyelid. The companies do not recommend it so this is an "off label" use.
If that is not enough to dissuade you, there has been a case of blindness in England caused by filler injection around the eye.
The modern approach to blepharoplasty for lower eyelid rejuvenation is to use a transconjunctival incision through the pink portion of the eyelid. This avoids an external incision which can disturb eyelid support and create a sad eyed look.
In addition, today we do not remove the fat that causes the eye bag, rather we re-position the fat or graft the excess fat into the dark circle beneath the bag. I call this an arcus marginalis release and fat grafting or fat repositioning.
This technique avoids the hollow eye and more importantly plumps the upper cheek area which rejuvenates the midface by adding fullness to the depression caused by downward migration of the cheek fat pad which occurs with aging.
Plastic Surgery--especially around the eye--is a very sophistoicated field which requires 7-8 years of training after medical school. A PA should not be giving advice on such an important issue. Consult 2 board certified plastic surgeons who are experienced in eyelid surgery; experience is so important.
See before and after pictures of the transconjunctival blepharoplasty with arcus release and fat grafting: Set 1 and Set 2