1. VAMPIRE Project, Centre for Clinical Brain Sciences, The University of Edinburgh, Edinburgh, UK
2. Department of Ophthalmology, Duke University School of Medicine, Durham, NC, USA
3. Department of Neurology, Duke University School of Medicine, Durham, NC, USA
4. Edinburgh Clinical Research Facility, The University of Edinburgh, Edinburgh, UK
5. VAMPIRE Project, Computer Vision and Image Processing, Computing (SSE), The University of Dundee, Dundee, UK
6. Edinburgh Dementia Prevention, The University of Edinburgh, Edinburgh, UK
7. Department of Social Medicine, Ohio University, Athens, OH, USA
8. The Welcome-Wolfson Institute for Experimental Medicine, School of Medicine Dentistry and Biomedical Science, Queen's University Belfast, Belfast, UK
9. Princess Alexandra Eye Pavilion, NHS Lothian, Edinburgh, UK