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据法国学者在1986——1990年间进行的调查研究表明,60％以上的视屏显示终端作业人员在作业时感到眼睛不舒适。这种眼睛不舒适实际上就是一种功能性视觉障碍,它是一种有别于眼部疾病或需矫正的视觉障碍。一般而言,视频显示终端作业人员易患这种视觉障碍,而且不论年龄、性别如何、也不论是否有过视力矫正,这种视觉障碍的发生次数与严重程度与作业人员每次连续作业时间成正比,每次连续作业时间越长(超过4小时)越易患这种视觉障碍,若每次连续作业时间不及一小时,则和不接触视屏显示终端的人员没有什么区别。此外,视屏显示终端作业人员中的肌肉骨骼疼痛发生率也较一般对照人群非视屏显示终端作业人员为高。最近的科学研究已经证实,视屏显示终端作业人员中因频繁视调节而致的功能性视觉障碍和因强迫体
According to a survey conducted by French scholars between 1986 and 1990, more than 60% of the screens showed that end-users felt uncomfortable with eyes during work. This kind of eye discomfort is actually a functional visual disorder, which is a visual disorder that is different from eye diseases or to be corrected. In general, video display terminal operators are susceptible to such visual disturbances, and regardless of age, gender and whether or not they have visual acuity correction, the number and severity of visual disturbances and the number of continuous operating hours In contrast, the longer each successive job (more than 4 hours) is, the more likely it is to be visually impaired. It does not make any difference from a person who does not touch the video display terminal for less than one hour per continuous job. In addition, the screen display terminal operator in the incidence of musculoskeletal than the average control group non-screen display terminal operator is higher. Recent scientific studies have confirmed that the screen shows the terminal operator due to frequent visual adjustment due to functional visual impairment and due to forced body