Colour vision and contrast sensitivity losses of mercury intoxicated industry workers in Brazil (2005)
- Authors:
- USP affiliated authors: VENTURA, DORA SELMA FIX - IP ; SIMOES, AGUINALDO LUIZ - FMRP ; COSTA, MARCELO FERNANDES DA - IP ; SOUZA, JOHN MANUEL DE - IP ; FARIA, MARCILIA DE ARAUJO MEDRADO - FM
- Unidades: IP; FMRP; FM
- DOI: 10.1016/j.etap.2004.12.016
- Subjects: NEUROCIÊNCIAS; MERCÚRIO (ELEMENTO QUÍMICO); TRABALHADORES; INTOXICAÇÃO
- Language: Inglês
- Abstract: We evaluated vision loss in workers from fluorescent lamp industries (n=39) who had retired due to intoxication with mercury vapour and had been away from the work situation for several years (mean=6.32 years). An age-matched control group was submitted to the same tests for comparison. The luminance contrast sensitivity (CSF) was measured psychophysically and with the sweep visual evoked potential (sVEP) method. Chromatic red-green and blue-yellow CSFs were measured psychophysically. Colour discrimination was assessed with the Famsworth-Munsell 100-hue test, Lanthony D-1 5d test and Cambridge Colour Vision Test. Patient data showed significantly lower scores in ali colour tests compared to controls (p<.001). The behavioural luminance CSF of the patients was lower than that of controls (p<.001 at ali frequencies tested). This result was confirmed by the electrophysiologically measured sweep VEP luminance CSF except at the highest frequencies-a difference that might be related to stimulus differences in the two situations. Chromatic CSFs were also statistically significantly lower for the patients than for the controls, for both chromatic equiluminant stimuli: red-green (p<.005) and blue-yellow (p<.04 for ali frequencies, except 2 cycles per degree (cpd), the highest spatial frequency tested) spatial gratings. We conclude that exposure to elemental mercury vapour is associated with profound and lasting losses in achromatic and chromatic visual functions, affecting the magno-, parvo- and koniocellular visual pathways
- Imprenta:
- Source:
- Título do periódico: Environmental Toxicology and Pharmacology
- Volume/Número/Paginação/Ano: v. 19, p. 523-529, 2005
- Este periódico é de assinatura
- Este artigo NÃO é de acesso aberto
- Cor do Acesso Aberto: closed
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ABNT
VENTURA, Dora Selma Fix et al. Colour vision and contrast sensitivity losses of mercury intoxicated industry workers in Brazil. Environmental Toxicology and Pharmacology, v. 19, p. 523-529, 2005Tradução . . Disponível em: https://doi.org/10.1016/j.etap.2004.12.016. Acesso em: 28 mar. 2024. -
APA
Ventura, D. S. F., Simões, A. L., Tomaz, S., Costa, M. F., Lago, M., Costa, M. T. V., et al. (2005). Colour vision and contrast sensitivity losses of mercury intoxicated industry workers in Brazil. Environmental Toxicology and Pharmacology, 19, 523-529. doi:10.1016/j.etap.2004.12.016 -
NLM
Ventura DSF, Simões AL, Tomaz S, Costa MF, Lago M, Costa MTV, Canto-Pereira LHM, Souza JM de, Faria MAM, Silveira LCL. Colour vision and contrast sensitivity losses of mercury intoxicated industry workers in Brazil [Internet]. Environmental Toxicology and Pharmacology. 2005 ; 19 523-529.[citado 2024 mar. 28 ] Available from: https://doi.org/10.1016/j.etap.2004.12.016 -
Vancouver
Ventura DSF, Simões AL, Tomaz S, Costa MF, Lago M, Costa MTV, Canto-Pereira LHM, Souza JM de, Faria MAM, Silveira LCL. Colour vision and contrast sensitivity losses of mercury intoxicated industry workers in Brazil [Internet]. Environmental Toxicology and Pharmacology. 2005 ; 19 523-529.[citado 2024 mar. 28 ] Available from: https://doi.org/10.1016/j.etap.2004.12.016 - Visual field losses in workers exposed to mercury vapor
- Occupational mercury contamination produces loss of color and contrast vision but no effect in full field ERG
- Electrophysiological evidence for impairment of contrast sensitivity in mercury vapor occupational intoxication
- Campimetria computadorizada em pacientes intoxicados por vapor de mercúrio
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Informações sobre o DOI: 10.1016/j.etap.2004.12.016 (Fonte: oaDOI API)
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