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目的评价多用户系统控制中寻呼员的视觉机能状态,探讨视疲劳产生的原因。方法对寻呼员上午工作前和工作后的主观感觉进行了测评,并分别在8 :15 、9 :15 、10 :15 、11 :15 、12 :15 对闪光融合频率、动态视力和屈光度等视觉指标进行现场测试。结果作业过程中工作人员没有出现严重的视觉不舒适症状,对不同阶段测试结果进行两两比较,闪光融合频率、动态视力等指标没有下降;与8 :15 所测结果比较,屈光度除右眼在12 :15 所测值下降达到显著水平外,其他均无显著差异。结论多用户系统控制中寻呼员的视觉机能状态保持良好,短暂而频繁的等待时间是保持视觉机能状态良好的重要原因。
Objective To evaluate the visual function of the pager in multi-user system control and to explore the causes of visual fatigue. Methods The subjective feelings of the presenter before and after the morning work were evaluated and the differences of flash fusion frequency, dynamic visual acuity and refraction, etc. at 8:15, 9:15, 10:15, 11:15, 12:15 Visual indicators for on-site testing. Results During the operation, the staff did not appear serious visual discomfort symptoms. The test results at different stages were compared on a pairwise basis. The flash fusion frequency, dynamic visual acuity and other indicators did not decrease. Compared with the results of 8:15, 12: 15 measured value dropped to a significant level, the other no significant difference. Conclusions The functional status of the pager in multi-user system is maintained well. Short and frequent waiting time is an important reason for keeping the visual function in good condition.