Comparison of Visual Functions of Two Amazonian Populations: Possible Consequences of Different Mercury Exposure

Autor(es)

Lacerda, Eliza Maria da Costa Brito ^[1] ; Souza, Givago da Silva ^[2] ; Cortes, Maria Izabel Tentes ^[3] ; Rodrigues, Anderson Raiol ^[2] ; Pinheiro, Maria Conceicao Nascimento ^[2] ; Silveira, Luiz Carlos de Lima ^{[4, 2]} ; Ventura, Dora Fix ^[5]

Afiliação do(s) autor(es)

^[1] Univ CEUMA, Fac Biomed, Sao Luis, Maranhao - Brazil

^[2] Univ Fed Para, Nucleo Med Trop, Belem, Para - Brazil

^[3] Univ Fed Amapa, Fac Enfermagem, Macapa - Brazil

^[4] Univ Fed Para, Inst Ciencias Biol, Belem, Para - Brazil

^[5] Univ Sao Paulo, Inst Psicol, Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: FRONTIERS IN NEUROSCIENCE; v. 13, JAN 21 2020.
• Citações Web of Science: 0

Resumo

The present study investigated the visual perimetry and color vision of two Amazonian populations differently exposed to mercury. Ten riverines environmentally exposed to mercury by fish eating and 34 gold-miners occupationally exposed to mercury vapor. The visual perimetry was estimated using the Forster perimeter and the color vision was evaluated using a computerized version of Farnsworth-Munsell test. Riverine and gold-miners' hair mercury concentrations were quantified. Mercury hair concentration of the riverines was significantly higher than that from gold-miners. Riverines had lower perimetric area than the gold-miners. The errors in the hue ordering test of both Amazonian populations were larger than the controls (non-exposed subjects), but there was no difference between themselves. Riverines had significant multiple association between the visual function and hair mercury concentration, while the gold-miners has no significant association with the exposure. We concluded that the different ways of mercury exposure led to similar visual outcomes, with greater impairment in riverines (organic mercury exposed subjects). (AU)

• Processo FAPESP: 14/26818-2 - Desenvolvimento e implantação de métodos de avaliação visual: aplicações clínicas e em modelos animais
• Beneficiário: Dora Selma Fix Ventura
• Modalidade de apoio: Auxílio à Pesquisa - Temático