1. School of Medicine, University College Dublin, Belfield, Ireland
2. Department of Ophthalmology and Visual Sciences, Kellogg Eye Centre, Ann Arbor, Michigan, Houston, Texas, United States
3. Department of Ophthalmology, University of Cambridge, Cambridge, United Kingdom
4. Department of Ophthalmology, Mater Miscordiae University Hospital, Dublin, Ireland
5. Center for Space Medicine, Baylor College of Medicine, Houston, Texas, United States
6. Department of Ophthalmology, Blanton Eye Institute, Houston Methodist Hospital, Houston, Texas, United States
7. The Houston Methodist Research Institute, Houston Methodist Hospital, Houston, Texas, United States
8. Department of Ophthalmology, Neurology, and Neurosurgery, Weill Cornell Medicine, New York, United States
9. Department of Ophthalmology, University of Texas Medical Branch, Galveston, Texas, United States