Blepharoplasty is a medical term for the cosmetic procedure to repair droopy eyelids that may involve removing excess fat, muscle, and skin.
Many people develop a "tired-eyes" look because of age or heredity. As we age, our eyes become sunken-looking and hide under heavy brow skin. This resulted from excess fat gathered above or below the eyelids. The sagging skin around the eye can also reduce your side vision (peripheral vision).