Good candidates for blepharoplasty are those who have excess skin and fat around the eyelids, causing droopy upper lids, sagging eyebrows, or bags under the eyes. Candidates should be healthy, nonsmokers, and have a positive outlook with realistic goals. Also individuals with loose or sagging skin that causes folds or affects the natural contour of the upper eyelid, impairing vision, or under-eye puffiness or bags may be good candidates for eyelid surgery. Additionally, those with lower eyelid blemishes or excess skin, or lower eyelid skin that has begun to droop in maturity may also be good candidates for blepharoplasty. However, to be covered by insurance, specific criteria must be met. For example, Medicare requires proof of at least 30% or 12 degrees of obstruction of the visual field caused by the underlying medical condition. Excess eyelid skin must be diagnosed by physical examination.