Niesłuchowska Maria
Pracowni Ochrony Układu Wzrokowego, Centrum Naukowego Medycyny Kolejowej w Warszawie.
Klin Oczna. 2007;109(1-3):30-4.
To examine the condition of visual functions of computer operators and the influence of work at VDU on visual functions and on self-satisfaction of computer users. The results of such studies can be used to determine the range and methods of carrying out qualification and prophylactic examinations.
The investigation involved 5 groups consisted of 241 people at the age 21 to 60 years (37 years on the average). A short-term visual work (1-hour work with computer) was the subject of the study of the first group. The influence of 6-hour work at VDU on the eye was studied in case of the second group. The subjects of the third group performed a routine office work without computer. The relation between the type of visual discomfort and working conditions (eg. natural and artificial lighting) was examined with the fourth group, while the examination of the fifth group aimed at revealing whether the correction of ergonomic conditions of workplaces had an effect on the reduction of complaints and on visual functions (the research was performed one year before the modernisation of workplaces and one year after). The study of visual complaints carried out with the use of questionnaires included the evaluation of visual functions (like: visual acuity, refraction, convergence, accommodation, critical flicker frequency, contrast sensitivity, binocular vision), and visual system and the assessment of ergonomic conditions of workplaces provided with VDUs.
The work at VDUs caused a statistically considerable deterioration of convergence, accommodation, near and distant phoria, contrast sensitivity and critical flicker frequency.
The reduced efficiency of examined functions may lead to visual discomfort of VDU operators. The improvement of ergonomic conditions of workplaces and individual adjustment of work-time has a favourable effect on the reduction of reported eye discomforts.
研究计算机操作人员的视觉功能状况，以及在视频显示终端（VDU）工作对视觉功能和计算机用户自我满意度的影响。此类研究结果可用于确定开展资格和预防性检查的范围及方法。
调查涉及5组，共241人，年龄在21至60岁之间（平均37岁）。第一组研究的对象是短期视觉工作（使用计算机工作1小时）。第二组研究了在VDU上工作6小时对眼睛的影响。第三组的受试者从事无计算机的日常办公室工作。第四组研究视觉不适类型与工作条件（如自然和人工照明）之间的关系，而第五组检查的目的是揭示工作场所人机工程学条件的改善是否对减少投诉和视觉功能有影响（研究在工作场所现代化改造前一年和改造后一年进行）。通过问卷调查进行的视觉投诉研究包括对视觉功能（如：视力、屈光、集合、调节、临界闪烁频率、对比敏感度、双眼视觉）、视觉系统的评估，以及对配备VDU的工作场所人机工程学条件的评估。
在VDU上工作导致集合、调节、近距和远距隐斜、对比敏感度和临界闪烁频率在统计学上有显著恶化。
所检查功能效率的降低可能导致VDU操作人员出现视觉不适。改善工作场所的人机工程学条件和个人工作时间调整对减少报告的眼部不适有积极作用。
