1. Department of Ophthalmology, Mater Misericordiae University Hospital, Dublin, Ireland
2. School of Medicine and Medical Science, University College Dublin, Dublin, Ireland
3. School of Biochemistry & Cell Biology, University College Cork, Cork, Ireland
4. Department of Pharmacology & Neuroscience and the North Texas Eye Research Institute, University of North Texas, Health Science Center, Fort Worth, Texas, United States
5. Department of Ophthalmology, Duke University, Durham, North Carolina, United States