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噪声不但对人的听力有很大的损害,还会损害人的视力。科学研究表明,噪声能使人的视杆细胞区别光亮度的敏感性降低,识别弱光反应的时间延长;瞳孔直径会随噪声的强度升高而增大。所以,较长时期接触噪声的人,容易出现眼疲劳、眼痛、眼花和视物流泪等现象。科学家们认为,在90分贝噪声环境中工作四小时,体内的维生素B_1和维生素C,分别减少30％和
Noise not only has great damage to human hearing, but also can damage people’s eyesight. Scientific research shows that the noise can make the difference between the sensitivity of human rod photometry reduced sensitivity to identify weak light reaction time; pupil diameter will increase with the increase of noise intensity. Therefore, the longer exposure to noise, prone to eye fatigue, eye pain, vertigo and depending on the phenomenon of material tears. Scientists believe that working in a 90 dB noisy environment for four hours reduces the body’s vitamin B 1 and vitamin C by 30% and