Contrast sensitivity to achromatic spatial drifting gratings in asymptomatic carriers of the MtDNA 11778 mutation Leber's Hereditary Optic Neuropathy (LHON) - Costa, Marcelo Fernandes da; Gualtieri, Mirella; Oliveira, A. G. F; Moreira, S. M. C. F; Sadun, F; Berezovsky, A; Salomão, S. R; Carelli, V; Sadun, A; Ventura, Dora Selma Fix (Annual Meeting of the Association for Research in Vision and Ophthalmology, 2010)