Occupational mercury contamination produces loss of color and contrast vision but no effect in full field ERG - Ventura, Dora Selma Fix; Simões Ana Luiza; Costa, Marcelo T V; Souza, John Manoel de; Pereira, Luiz H M Canto; Lago, Marcos; Faria, Marcilia A M; Silveira, L C L (Meeting of the Association for Research in Vision and Ophthalmology, 2003)