Gur S, Ron S, Heicklen-Klein A
Occupational Health & Rehabilitation Institute, Loewenstein Hospital, Raanana, Israel.
Occup Med (Lond). 1994 Sep;44(4):201-4. doi: 10.1093/occmed/44.4.201.
Prolonged work with visual display units (VDUs) may result in a wide range of subjective complaints of visual fatigue and somatic disorders. Accepted tests for measuring the physiological correlates of eye discomfort are lacking. In this study, we tested accommodation and convergence, which are most often linked experimentally with VDU work. The tests were carried out on 16 VDU and 13 control workers aged 24 to 43 years, before work at the beginning of the week (first examination) and again four days later at the end of the work day (second examination). The results in VDU workers showed that both accommodation and convergence range significantly decreased. In addition, those workers with powerful accommodative or convergence ranges at the initial examination had a higher decrease. We suggest that accommodation and convergence measurements can be used to evaluate visual fatigue objectively in VDU workers.
长时间使用视觉显示单元（VDU）可能会导致一系列主观的视觉疲劳和躯体不适症状。目前缺乏用于测量眼部不适生理相关指标的公认测试方法。在本研究中，我们测试了调节和集合功能，这两种功能在实验中最常与VDU工作相关联。测试在16名VDU工作者和13名对照工作者中进行，他们的年龄在24至43岁之间，在一周开始工作前（第一次检查）以及四天后的工作日结束时（第二次检查）进行。VDU工作者的测试结果显示，调节和集合范围均显著下降。此外，在初次检查时调节或集合范围较强的工作者下降幅度更大。我们建议，调节和集合功能测量可用于客观评估VDU工作者的视觉疲劳。
