1 Department of Surgery, Medical School, Universidade Federal de Pernambuco, Recife, PE, Brazil.
2 Department of Ophthalmology, Otorhinolaryngology and Head & Neck Surgery, Ribeirao Preto Medical School, Universidade de São Paulo, Ribeirão Preto, SP, Brazil.
3 Department of Ophthalmology, Medical School, Universidade de São Paulo, São Paulo, SP, Brazil.
4 Department of Ophthalmology, Public Health School of Ceara, Universidade Estadual do Ceará, Fortaleza, CE, Brazil.
5 Department of Ophthalmology, Medical School, Universidade Federal do Rio Grande do Sul, Proto Alegre, RS, Brazil.
6 Department of Ophthalmology and Visual Science, Universidade Federal de São Paulo, São Paulo, SP, Brazil.
7 Ocular Oftalmologia. Vitoria, ES, Brazil.
8 Department of Ophthalmology & Otorhinolaryngology, Medical Sciences Faculty, Universidade Estadual de Campinas, Campinas, SP, Brazil.