1. Macular Pigment Research Group, Nutrition Research Centre Ireland, School of Health Science, Waterford Institute of Technology, Waterford, Ireland
2. The Irish Longitudinal Study on Ageing, Department of Medical Gerontology, Trinity College, Dublin, Ireland
3. Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University, Belfast, United Kingdom
4. NIHR Biomedical Research Centre at Moorfields Eye Hospital and UCL Institute of Ophthalmology, London, UK