1 Oculoplastic division, Ophthalmology Section, Hospital de Clínicas de Porto Alegre, Porto Alegre, Rio Grande do Sul, Brazil
2 Department of Ophthalmology and Otolaringology of Faculdade de Medicina, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
Financial Disclosure Statement: There was no financial interest connected to any product described in this paper, paid consulting for the company or competing companies, or patent rights to a drug or piece of equipment. No funding was received for this article.
Corresponding Author: Prof. Fernando Procianoy, MD, PhD, Serviço de Oftalmologia - Zona 17 - Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350. Porto Alegre – RS – Brazil - ZIP 90035-003, firstname.lastname@example.org