1. School of Biomedical Sciences, University of Ulster, Cromore Road, Coleraine, BT52 1SA, UK
2. Siena Eye Laser, 53035 Monteriggioni, Siena, Italy
3. Emmetropia Mediterranean Eye Institute, Plateia Eleytherias 44, 71201, Heraklion, Crete, Greece
4. School of Life & Health Sciences, Aston University, Aston Triangle, Birmingham, B4 7ET, UK
5. Midland Eye Institute, 50 Lode Lane, Solihull, West Midlands, B91 2AW, UK
6. Heart of England Foundation Trust, Bordesley Green East, Birmingham, B9 5SS, UK
7. Birmingham & Midland Eye Centre, Sandwell and West Birmingham NHS Trust City Hospital Dudley Road, Birmingham, B187QH, UK