1. From the Department of Ophthalmology, School of Medicine of Ribeira~o Preto, Ribeira~o Preto-SP, Brazil; the
2. Exact Sciences Department, Universidade Estadual Paulista, Jaboticabal-SP, Brazil; and
3. Retina Diagnostic and Treatment Division, Hospital de Olhos de Araraquara, Araraquara-SP, Brazil.
4. From the Department of Ophthalmology, School of Medicine of Ribeira~o Preto, Ribeira~o Preto-SP, Brazil; the3Retina Diagnostic and Treatment Division, Hospital de Olhos de Araraquara, Araraquara-SP, Brazil.