[1] Univ Sao Paulo, Div Ophthalmol, Sao Paulo, SP, Brazil
[2] Univ Sao Paulo, Lab Invest Ophthalmol LIM 33, Sao Paulo, SP, Brazil
[3] Univ Sao Paulo, Dept Neurol, Sao Paulo, Brazil
[4] Univ Spital Basel, Dept Neurol Biomed & Clin Res, Basel, BS, Switzerland
[5] Pontificia Univ Catolica Rio Grande do Sul, Dept Neurol, Porto Alegre, RS, Brazil