Background: The purpose of this study was to evaluate the innervation and function of the orbicularis oculi area clinically, with video imaging, and electrically, with electromyography, before and after lower-eyelid blepharoplasty using a conventional subciliary incision.
Methods: Nine patients (18 eyes) were studied before and 4 to 12 weeks after lower-eyelid blepharoplasty. Video imaging documented clinical changes in involuntary (blink) and voluntary (squeeze and squint) eyelid function as well as resting lid position and tone.