The most common form of eyelid surgery most people know is cosmetic eyelid rejuvenation. The procedure is referred to simply as blepharoplasty or, sometimes, as cosmetic blepharoplasty. Cosmetic eyelid surgery is performed by a plastic surgeon. It is done to improve the appearance of the eyes and face. This is in stark contrast to functional blepharoplasty, which is performed to correct an issue that could affect vision or health.
The goal of functional blepharoplasty is first to improve your vision. Your appearance may improve as a byproduct, but that is not the primary objective. The functional eyelid surgery procedure usually focuses on the upper eyelids. This is because excess tissue on the upper eyelid can droop into the field of vision. This sagging skin may create irritation due to friction or may make it difficult to wear contact lenses or glasses.