Neuro-Ophthalmology Department (AV), Las Vegas Neurology Center; Neurology Residency Program at Valley Hospital Medical Center (AV), Las Vegas, Nevada; College of Osteopathic Medicine (AV), Touro University Nevada; Cizik Eye Clinic (O-oA), The University of Texas Houston, Texas; Blanton Eye Institute (AGL), Houston Methodist Hospital, Houston, Texas; and Department of Ophthalmology and Visual Sciences (GPVS), Washington University in St. Louis School of Medicine, St Louis, Missouri.

Address correspondence to Gregory P. Van Stavern, MD, Department of Ophthalmology and Visual Sciences, Washington University in St. Louis School of Medicine, St Louis, MO 63110; E-mail: [email protected]

The authors report no conflicts of interest.