Psychophysical evaluation of achromatic and chromatic vision of workers chronically exposed to organic solvents.
Psychophysical evaluation of achromatic and chromatic vision of workers chronically exposed to organic solvents.
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DOI：
10.1155/2012/784390
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发表时间：
2012
影响因子：
--
通讯作者：
Silveira LC
中科院分区：
文献类型：
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作者：
Lacerda EM;Lima MG;Rodrigues AR;Teixeira CE;de Lima LJ;Ventura DF;Silveira LC
本文旨在用心理物理学方法评价长期接触有机溶剂工人的非彩色和彩色视力。对31名加油站工人（31.5 ± 8.4岁）进行了评估。心理物理测试是无色测试（Snellen图表，空间和时间对比敏感度，和视野检查）和色度测试（石原测试，颜色辨别椭圆，和Farnsbran-Munsell 100色调测试-FM 100）。在20和30 cpd的空间频率下，暴露工人的空间对比敏感度低于对照组，而时间对比敏感度保持不变。溶剂暴露工人的视野损失在10-30度偏心度范围内。接尘组FM 100误差值高于对照组，辨色椭圆区较对照组宽。职业性接触有机溶剂的工人存在视觉功能异常，主要表现为色觉减退和视野缩小。
The purpose of this paper was to evaluate achromatic and chromatic vision of workers chronically exposed to organic solvents through psychophysical methods. Thirty-one gas station workers (31.5 ± 8.4 years old) were evaluated. Psychophysical tests were achromatic tests (Snellen chart, spatial and temporal contrast sensitivity, and visual perimetry) and chromatic tests (Ishihara's test, color discrimination ellipses, and Farnsworth-Munsell 100 hue test—FM100). Spatial contrast sensitivities of exposed workers were lower than the control at spatial frequencies of 20 and 30 cpd whilst the temporal contrast sensitivity was preserved. Visual field losses were found in 10–30 degrees of eccentricity in the solvent exposed workers. The exposed workers group had higher error values of FM100 and wider color discrimination ellipses area compared to the controls. Workers occupationally exposed to organic solvents had abnormal visual functions, mainly color vision losses and visual field constriction.