Dain S J, McCarthy A K, Chan-Ling T
School of Optometry, University of New South Wales, Kensington, Australia.
Am J Optom Physiol Opt. 1988 Mar;65(3):162-7. doi: 10.1097/00006324-198803000-00004.
The investigation of the role of visual and ocular characteristics of visual display unit (VDU) operators in the causation of subjective visual fatigue has not been reported previously. A retrospective study in which the visual and ocular characteristics of symptomatic and asymptomatic VDU operators was carried out in order to determine whether such a relation could be demonstrated. Three groups totaling 1013 VDU operators from two semigovernment organizations were assessed using either a full eye examination or a modified clinical screening technique. Before examination, the operators completed a short questionnaire on the symptoms they experienced when using VDU's. Significant differences between the symptomatic and asymptomatic operators in some groups were found for over-refraction (spherical equivalent and cylindrical) and near horizontal heterophoria. Despite the existence of this relation, no basis for valid visual standards could be established. In particular, no basis was found for the automatic prescribing of low plus corrections and, in the absence of clearly definable visual standards, the involvement of clinical judgment in the assessment of operators was found to be necessary.
视觉显示终端（VDU）操作员的视觉和眼部特征在主观视觉疲劳成因中的作用此前尚未见报道。开展了一项回顾性研究，对有症状和无症状的VDU操作员的视觉和眼部特征进行了调查，以确定是否能证实这种关系。来自两个半政府组织的总共1013名VDU操作员被分为三组，使用全面眼部检查或改良临床筛查技术进行评估。检查前，操作员填写了一份关于使用VDU时所经历症状的简短问卷。在某些组中，有症状和无症状操作员在过矫（球镜等效度数和柱镜度数）和近水平隐斜方面存在显著差异。尽管存在这种关系，但无法确立有效的视觉标准依据。特别是，未发现自动开具低度数正镜片矫正处方的依据，而且在缺乏明确可定义的视觉标准的情况下，发现临床判断参与操作员评估是必要的。
