1. Evidence Based Ophthalmology Unit (Oftalmoevidencia), Scientia Clinical and Epidemiological Research Institute, Trujillo, Perú
2. Service of Ophthalmology, Hospital Universitario Central de Asturias, Oviedo, Spain
3. Universidad Nacional de Tumbes, Tumbes, Perú
4. Centro de Excelencia en Glaucoma, Clinica GO-Vision, Lima, Perú
5. Department of Ophthalmology, Hospital Nacional Guillermo Almenara Irigoyen, Lima, Perú