1. Department of Ophthalmology, Hospital Costa del Sol, 29603 Marbella, Spain
2. Department of Ophthalmology, Hospital Regional Universitario de Málaga, 29010 Malaga, Spain
3. Faculty of Medicine, Universidad de Málaga, 29016 Malaga, Spain
4. Qvision, Ophthalmology Department, VITHAS Almería Hospital, 04120 Almería, Spain
5. Ophthalmology Department, VITHAS Málaga Hospital, 29016 Malaga, Spain
6. Departamento de Cirugía, Universidad de Sevilla, Área de Oftalmología, Doctor Fedriani, 41004 Seville, Spain
7. Department of Ophthalmology, Victor Babes University of Medicine and Pharmacy, 300041 Timișoara, Romania
8. Manchester Royal Eye Hospital, Manchester M13 9WL, UK