论文部分内容阅读
人所共知,噪音可影响听力。因此,噪音作为一种环境污染已被人们所重视。但近年来发现,噪音还是危害人们视力的元凶,不仅高强度噪音可以损害人的视力,就是中等强度的噪音刺激,也可引起人们视觉功能发生异常。我们知道,视杆细胞具有区别光亮度的能力。据报道,在90分贝的噪音作用下,视杆细胞的这种功能可以降低,识别弱充反应的时间将延长。当噪音增至115分贝时,眼睛对于光亮的适应性可降低20%。而且,视觉的调节速度和眼睛的运动速度在85～110分贝噪音环境中可以减慢。
It is well known that noise can affect hearing. Therefore, noise as an environmental pollution has been valued. However, in recent years, it has been found that noise is still the culprit of people’s eyesight. Not only can high-intensity noise damage people’s eyesight, but also moderate-intensity noise stimulation can also cause people’s visual function to be abnormal. We know that rod cells have the ability to distinguish between light levels. It has been reported that at 90 decibels of noise, this function of rod photoreceptor cells can be reduced and the time to identify a weak charge reaction will be extended. When the noise is increased to 115 dB, the eye can reduce the adaptability of light by 20%. Moreover, the visual adjustment speed and eye movement speed in 85 ~ 110 dB noise can slow down.