1. From the Department of Ophthalmology, Miguel Servet University Hospital, Zaragoza, Spain;
2. NIHR (National Institute of Health Research) Biomedical Research Centre for Ophthalmology, Moorfields Eye Hospital NHS (National Health Service) Foundation Trust and UCL (University College London) Institute of Ophthalmology, London, United Kingdom;3G. B.
3. G. B. Bietti Foundation-IRCCS (Istituto di Ricovero e Cura a Carattere Scientifico), Rome, Italy; and the
4. Department of Ophthalmology, San Carlos University Hospital, Madrid, Spain.