1. Department of Dermatology; University Hospital of Guadalajara; Guadalajara 19002 Spain
2. Opthalmology Department, Infanta Sofía University Hospital; 28702 San Sebastián de los Reyes (Madrid) Spain
3. Ophtalmology Department, Del Henares University Hospital, 28822 Coslada (Madrid); Spain
4. Department of Pharmacy; University Hospital of Guadalajara; Guadalajara Spain