1. Department of Ophthalmology, Otorhinolaryngology, and Head and Neck Surgery, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil
2. Department of Ophthalmology, Hospital D’olhos, São José do Rio Preto, Brazil
3. Department of Pathology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil