Chapter

Visual Dysfunction Following Mercury Exposure By Breathing Mercury Vapour Or By Eating Mercury-Contaminated Food

Luiz Carlos L. Silveira, Enira Terezinha B. Damin, Maria Da ConceiÇÃO N. Pinheiro, Anderson R. Rodrigues, Ana Laura A. Moura, Maria Izabel T. CÔRtes and Guilherme A. Mello

in Normal and Defective Colour Vision

Published in print May 2003 | ISBN: 9780198525301
Published online April 2010 | e-ISBN: 9780191584947 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780198525301.003.0044
Visual Dysfunction Following Mercury Exposure By Breathing Mercury Vapour Or By Eating Mercury-Contaminated Food

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This chapter examines the visual performance of Amazonian gold miners and other workers suffering from mercury poisoning. Subjects exposed to mercury displayed a variable degree of spatial vision dysfunction. Both achromatic and chromatic vision were impaired. They had lower achromatic contrast sensitivity and this effect was more pronounced in the medium spatial frequency range. Mercury exposed subjects also had lower red-green and blue-green chromatic contrast sensitivity than control subjects in all tested spatial frequencies.

Keywords: colour vision; visual dysfunction; mercury contamination; mercury poisoning; gold miners

Chapter.  2847 words.  Illustrated.

Subjects: Neuropsychology

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