Harazin B, Grzesik J, Pawlas K, Kozak A
Institute of Occupational Medicine in the Mining and Metallurgical Industry, Sosnowiec, Poland.
Pol J Occup Med. 1990;3(2):163-9.
The aim of this study was to determine the relationship between intensity, noise duration and non-auditory effect represented by changes both in visual acuity and the near point of accommodation. Changes in vision efficiency determined by a black and white chess board were monitored during and after 1 h exposure to 4 levels of noise: 90 dB-A, 93 dB-A, 96 dB-A or 99 dB-A and 2 h exposure to 96 dB-A. Results indicated that vision impairment can be attributed to a complex relationship between the intensity and the duration of exposure to noise.
本研究的目的是确定强度、噪声持续时间与以视力和近点调节变化所代表的非听觉效应之间的关系。在暴露于90分贝-A、93分贝-A、96分贝-A或99分贝-A这4种噪声水平1小时期间及之后，以及暴露于96分贝-A 2小时期间及之后，监测由黑白棋盘确定的视觉效率变化。结果表明，视力损害可归因于噪声暴露强度与持续时间之间的复杂关系。
