To assess the acute and chronic ophthalmological effect of triethylamine exposure among foundry workers.
Methods-Ocular effects on people currently, previously, and never exposed to triethylamine in a foundry cold box were studied at two points in time.
The initial phase included an ocular examination with a slit lamp to assess corneal health, a visual acuity test, and a questionnaire to assess vision symptoms.
The follow up included measurements of corneal thickness with an ultrasonic pachymeter and the vision symptoms questionnaire before and after the shift and at the beginning and end of the week.
Personal air measurements for triethylamine were also obtained during the follow up.
Result-The vision symptoms of blurriness, halos around lights, and blue hazy vision occurred more often in currently exposed workers than those previously or never exposed to triethylamine.
Air concentrations of triethylamine ranged from<0.33 mg/m3 to 20.3 mg/m3.
Among currently exposed workers, symptoms were more common among those with exposure to>10 mg/m3 of triethylamine (odds ratio (OR)=3.0,95% confidence interval (95% CI) 0.35-25.6).
No differences in corneal thickness were found in currently or previously exposed workers and those never exposed.
No increase in corneal thickness was found after upsilon before the shift.
Conclusion-Despite low concentrations of triethylamine and no corneal oedema, workers exposed to triethylamine reported vision symptoms.
Mots-clés Pascal : Toxicité, Exposition professionnelle, Fonderie, Homme, Trouble vision, Cornée, Noyau sable, Boîte froide, Médecine travail, Oeil pathologie, Triéthylamine
Mots-clés Pascal anglais : Toxicity, Occupational exposure, Foundry, Human, Vision disorder, Cornea, Sand core, Cold box, Occupational medicine, Eye disease
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 95-0376227
Code Inist : 002B03L06. Création : 01/03/1996.