There are two basic reasons to perform a brow lift with or without blepharoplasty, one is to improve appearance, the other is to improve vision. Obviously operations done for purely cosmetic reasons would not be covered by a health insurance policy. Functional impairment, however, is a different matter. Requirements vary between insurers, but generally speaking, patients with documented visual field loss that is improved at least 30% by manual elevation of the brows may seek coverage. Patients who feel as though the upper part of their visual field is blocked, have difficulty keeping their eyes open as the days wears on, or suffer from spasms or headaches as a result of constantly trying to elevate their brows would be considered candidates for a functional brow lift and/or blepharoplasty.