1. Department of Ophthalmology, Rio Hortega University Hospital, Valladolid, Spain
2. Department of Ophthalmology, Hospital Clínic de Barcelona, Institut Clínic d‘Oftalmologia, Barcelona, Spain
3. Department of Ophthalmology, Facultad de Medicina de Buenos Aires, Universidad de Buenos Aires, Buenos Aires, Argentina
4. Distance Education and Health Information Technology Center, Faculdade de Medicina de Botucatu, UNESP, Sao Paulo, Brazil
5. Diagnostic Research, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
6. Department of Biostatics, Instituto de Biociencias, UNESP, Sao Paulo, Brazil
7. Department of Oculoplastics, King Khaled Eye Specialist Hospital, Riyadh, Saudi Arabia
8. Department of Ophthalmology Faculdade de Medicina de Botucatu, UNESP, São Paulo, Brazil