1. Ophthalmology Service, Hospital Universitario Sant Joan, Universitat Rovira & Virgili, Institut de Investigacio Sanitaria Pere Virgili (IISPV), 43204 Reus, Spain
2. ITAKA Research Group, Department of Computer Science and Mathematics, Universitat Rovira & Virgili, Institut d’Investigacions Sanitaries Pere Virgili (IISPV), 43007 Tarragona, Spain