1. Department of Ophthalmology of Hospital Pedro Hispano, Unidade Local de Saúde de Matosinhos, Porto, Portugal
2. Diabetes Ocular Department of Centro Hospitalar e Universitário de Santo António (CHUdSA), Porto, Portugal
3. Department of Ophthalmology, Unit for Multidisciplinary Research in Biomedicine (UMIB), Institute for the Biomedical Sciences Abel Salazar from University of Porto (UMIB ICBAS - UP), Porto, Portugal
4. Department of Ophthalmology of Centro Hospitalar entre Douro e Vouga, Santa Maria da Feira, Portugal
5. Department of Ophthalmology of Centro Hospitalar de Leiria, Leiria, Portugal
6. Department of Ophthalmology of Centro Hospitalar Universitário de São João (CHUSJ), E.P.E., Porto, Portugal
7. Department of Ophthalmology of Faculty of Medicine of the University of Porto, Porto, Portugal
8. Department of Ophthalmology, Ophthalmology Clinic, Faculty of Medicine of the University of Coimbra (FMUC), Coimbra,
Portugal
9. Department of Ophthalmology of Centro Hospitalar e Universitário de Coimbra (CHUC), Coimbra, Portugal
10. Department of Ophthalmology, Coimbra, Centro Académico Clínico de Coimbra (CACC), Coimbra, Portugal
11. Department of Ophthalmology of Centro Hospitalar e Universitário de Santo António (CHUdSA), Porto, Portugal