1 Department of Neurology (OO), Houston Methodist Hospital, Houston, Texas; Department of Ophthalmology (MP, CC), Blanton Eye Institute, Houston Methodist Hospital, Houston, Texas; Herb and Jean Lyman Centennial Chair in Ophthalmology (AGL), Department of Ophthalmology-Blanton Eye Institute; Professor of Ophthalmology, Neurology, and Neurosurgery (AGL), Weill Cornell Medicine, New York, New York; Clinical Professor of Ophthalmology (AGL), UTMB Galveston, Texas A and M College of Medicine, and the UT MD Anderson Cancer Center, Texas; and Adjunct Professor of Ophthalmology (AGL), Baylor College of Medicine, the University of Buffalo, and the University of Iowa Hospitals and Clinics, Iowa City, Iowa.