1. Department of Ophthalmology, Hospital Universitario Santiago de Compostela, Santiago de Compostela, Spain
2. Pharmacy Department and Pharmacology Group, Univ Hospital of Santiago de Compostela (SERGAS) and Health Research Intitute (IDIS), Santiago de Compostela, Spain
3. Instituto Oftalmologico Gomez-Ulla, Santiago de Compostela, Spain