[1] Johns Hopkins Univ, Wilmer Eye Inst, Retina Div, Baltimore, MD 21218 USA
[2] Clin Privada Ojos, Retina & Vitreous Serv, Mar Del Plata, Buenos Aires, Argentina
[3] Hosp Univ Austral, Serv Oftalmol, Buenos Aires, DF, Argentina
[4] Clin Ojos, Cuenca, Ecuador
[5] Gen Univ Valencia, Consorcio Hosp, Valencia, Spain
[6] Univ Buenos Aires, Dept Ophthalmol, Uveitis Clin, Buenos Aires, DF, Argentina
[7] Zagazig Univ, Fac Med, Dept Ophthalmol, Zagazig, Egypt