目的 了解北京某网络公司视频终端综合征(visual display terminal syndrome, VDT syndrome,简称VDT)的发生情况、临床表现及相关因素。方法 对北京某网络公司141名在岗员工进行问卷调查和眼科检查:调查表内容包括一般资料、屈光状态、工作环境和时间,以及最近3个月内视频使用时间、视疲劳症状调查、眼外症状、久视疲劳时间、日疲劳次数;眼科检查包括视力、眼压、干眼症检查及眼底检查。结果 该网络公司116名为网络技术人员(一线员工组),人力资源、公关、策划、翻译等共25名(非一线员工组)。该公司87.2%有近视,使用视频时间(13.9±2.0)h/d。97.9%的人患有VDT,其中,一线员工组100%,发生率高于非一线员工组(88.0%),差异有统计学意义(χ²=9.04,P=0.0026)。久视疲劳时间为(4.60±2.3)h,日疲劳次数为2.35±1.46。视疲劳症状前四位分别是眼干涩、神疲乏力、眼胀、视物模糊。结论 该网络公司VDT发生率高,不同工种员工VDT发生有差别,视疲劳症状及眼外症状明显,急需进行健康宣教及干预治疗进行防治。

Objective To investigate the incidence rate and related factors of visual display terminal syndrome (VDT) in video users. Methods Questionnaire survey and ophthalmological examination on 141 employees of a network company in Beijing were conducted. Survey included general information, refractive status, working conditions and time, and video use time in the last three months, the symptoms of fatigue, other systemic symptoms, average fatigue time after long watching, the number of daily fatigue. Ophthalmologic examinations included visual acuity, intraocular pressure, xerophthalmia and fundus examination. Results Subjects were 116 network technicians (front-line employees), and other 25 employees engaged in human resources, public relations, planning, translation etc (non-front line). 87.2% of respondents had myopia, (13.9±2.0) h/d due to video usage. 97.9% of respondents were diagnosed as having VDT, in whom frontline staff group consisting of 100%, were higher than in the non-front-line employee groups (88.0%), the difference was statistically significant (χ²=9.04, P=0.0026). Moreover, average fatigue time after long watching was(4.60±2.3)h, and the number of daily fatigue was 2.35±1.46. The top four frequent symptoms of fatigue were xerophthalmia, lassitude, eye swelling, and blurred vision. Conclusions VDT occurs with high incidence in the network company, with difference between front line and non-front line employees. They have obvious eye fatigue and external symptoms. Therefore there is urgent need for health education and prevention of VDT.