Blepharoplasty is a surgery to repair droopy eyelids that may involve removing excess skin, muscle and fat. As you age, your eyelids stretch, and the muscles supporting them weaken. As a result, excess fat may gather above and below your eyelids, causing sagging eyebrows, droopy upper lids and bags under your eyes, which will make you look older. Severely sagging skin around your eyes can reduce your side vision (peripheral vision), especially the upper and outer parts of your field of vision. Blepharoplasty can reduce or eliminate these vision problems and make your eyes appear younger and more alert.