There are several specialities of doctors that could perform blepharoplasty. These would include facial plastic surgeons, plastic surgeons, and oculoplastic surgeons. It is best to interview several doctors before choosing one to perform your procedure. There is not one specialty that is generally better at blepharoplasty than another. It really has more to do with the individual surgeon.
Plastic surgeons have performed blepharoplasty for years. Oculoplastic surgeons, who typically have opthomology training, specialize in all types of surgeries around the eyes, blepharoplasties included. ENT doctors, often with additional training in cosmetic facial procedures, are referred to as facial plastic surgeons and perform blepharoplasties. Best advice is to look for a well trained and experienced surgeon from these fields in your area. Visit their website and look at their before and after blepharoplasty pictures. Look at their online reviews. Then obtain one or more consultations to select the surgeon with whom you are most comfortable.