1. Centro de Ojos Quilmes, Quilmes, Buenos Aires Province, Argentina
2. Anterior Segment Surgery Department, Asociación Para Evitar la Ceguera en México I.A.P., Mexico City, Mexico
3. Hospital Perpetuo Socorro, Las Palmas de Gran Canaria, Spain
4. Clinical Science Department, Science of Health Division, University of Monterrey, San Pedro Garza García, Nuevo León, Mexico