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Irreversible color vision losses in patients with chronic mercury vapor intoxication
Feitosa-Santana C, Barboni MT, Oiwa NN, Paramei GV, Simões AL, Costa MF, Silveira LC, Ventura DF.
Núcleo de Neurociências e Comportamento, Universidade de São Paulo, São Paulo, Brazil.
Vis Neurosci. 2008 May;25(3):487-491.
This longitudinal study addresses the reversibility of
color vision losses in subjects who had been occupationally exposed to mercury
vapor. Color discrimination was assessed in 20 Hg-exposed patients (mean age =
42.4 +/- 6.5 years; 6 females and 14 males) with exposure to Hg vapor during
10.5 +/- 5.3 years and away from the work place (relative to 2002) for 6.8 +/-
4.2 years. During the Hg exposure or up to one year after ceasing it, mean
urinary Hg concentration was 47 +/- 35.4 mug/g creatinine. There was no
information on Hg urinary concentration at the time of the first tests, in 2002
(Ventura et al., 2005), but at the time of the follow-up tests, in 2005, this
value was 1.4 +/- 1.4 mug/g creatinine for patients compared with 0.5 +/- 0.5
mug/g creatinine for controls (differen
PMID: 18598423 [PubMed - as supplied by publisher]