Sue Anschutz-Rodgers Eye Center (AIM, AVZ, JLB, PSS), Departments of Ophthalmology (AIM, AVZ, JLB, PSS), Neurology (AVZ, JLB, PSS), and Neurosurgery (PSS), University of Colorado School of Medicine, Aurora, Colorado; and Department of Surgery (Division of Ophthalmology) (PSS), Uniformed Services University of the Health Sciences, Bethesda, Maryland.