Risk factors for computer vision syndrome among operators of two call centres in Sao Paulo, Brazil
研究了476名呼叫中心操作员中计算机视觉综合征的患病率（73.9%），发现女性、缺乏认可、工作组织和工作需求是主要风险因素。
<h3>Objectives</h3> The aim of this study was to estimate the prevalence of Computer Vision Syndrome (CVS) among operators from two call centres located in São Paulo (n=476). <h3>Methods and results</h3> The symptoms were: visual fatigue (73.9%), “heaviness” in the eyes (68.2%), “burning” eyes (54.6%), tearing (43.9%) and vision impairment (43.5%). Other associations were: being female (OR 2.6, 95% CI 1.6-4.1), lack of recognition during work (OR 1.4, 95% CI 1.1 to 1.8); organisation of work in telemarketing (OR 1.4, 95% CI 1.1 to 1.7) and work demands (OR 1.1, 95% CI 1.0 to 1.3). <h3>Conclusions</h3> This study showed the importance of organizational characteristics and psychosocial factors at work as related to the presence of CVS in telemarketing operators.