1. Texas A&M College of Medicine, Bryan, Texas;
2. Department of Ophthalmology, Blanton Eye Institute, Houston Methodist Hospital, Houston, Texas;
3. The Houston Methodist Research Institute, Houston Methodist Hospital, Houston, Texas;
4. Departments of Ophthalmology, Neurology, and Neurosurgery, Weill Cornell Medicine, New York;
5. Department of Ophthalmology, University of Texas Medical Branch, Galveston, Texas;