Doctoral Programme in Health Sciences, University of Alicante, Alicante, Spain.
Department of Optics, Pharmacology and Anatomy, University of Alicante, Alicante, Spain.
Ophthalmic Physiol Opt. 2021 Jul;41(4):922-931. doi: 10.1111/opo.12832. Epub 2021 May 4.
To estimate the prevalence of computer vision syndrome (CVS) in presbyopic digital device workers using two ophthalmic progressive lens designs during the working day, and to analyse the association of CVS with sociodemographic, occupational, digital device exposure and refractive factors.
This time series, quasi-experimental design study included 69 presbyopic digital device workers (age range: 46-69 years; mean ± SD = 54.7 ± 5.0). All used desktop computers at their workplace. Progressive addition lenses (PALs) and occupational lenses were used for three months each. CVS was measured with the CVS-Q questionnaire before intervention (baseline) and at 1 week, 1 month and 3 months after wearing the lenses. A multivariate logistic regression model was used to identify the factors that were associated with an improved CVS-Q score.
37.7% of the subjects were female and 78.3% were ametropes; 65.2% had advanced presbyopia. 56.2% used digital devices at work >6 h day . The prevalence of CVS at baseline, after wearing PALs for three months and after three months of occupational lens wear was 68.1%, 33.3% and 18.8%, respectively. The mean CVS-Q score was lower with occupational lenses than with PALs (p = 0.001). 40.6% of the digital device workers improved their CVS-Q score ≥2 points with the occupational lenses. Ametropes were less likely than emmetropes to improve with occupational lenses (OR = 0.27, p = 0.05). 89.8% of the sample workers were satisfied or very satisfied with the occupational lenses and 71% were similarly satisfied with the PALs. 73.9% chose the occupational lenses as their first choice of lens for digital device use, compared with 17.4% for PALs.
Computer vision syndrome is reduced in presbyopic desktop computer workers wearing occupational lenses compared with PALs, especially in emmetropes.
使用两种眼科渐进镜片设计，在工作日内评估远视数字设备工作者的计算机视觉综合征（CVS）患病率，并分析 CVS 与社会人口统计学、职业、数字设备暴露和屈光因素的相关性。
本时间序列、准实验设计研究纳入 69 名远视数字设备工作者（年龄范围：46-69 岁；平均 ± 标准差=54.7 ± 5.0）。所有参与者均在工作场所使用台式计算机。使用渐进多焦点镜片（PAL）和职业镜片各 3 个月。在干预（基线）前和佩戴镜片后 1 周、1 个月和 3 个月时，使用 CVS-Q 问卷测量 CVS。采用多变量逻辑回归模型确定与 CVS-Q 评分改善相关的因素。
65.2%的参与者为远视，78.3%为屈光不正；56.2%的人在工作中每天使用数字设备 >6 小时。基线时、佩戴 PAL 3 个月后和佩戴职业镜片 3 个月后的 CVS 患病率分别为 68.1%、33.3%和 18.8%。与 PAL 相比，职业镜片的 CVS-Q 评分较低（p=0.001）。40.6%的数字设备工作者使用职业镜片后 CVS-Q 评分提高≥2 分。与正视眼相比，屈光不正者使用职业镜片改善的可能性较小（OR=0.27，p=0.05）。89.8%的样本工作者对职业镜片满意或非常满意，71%对 PAL 同样满意。73.9%的人选择职业镜片作为数字设备使用的首选镜片，而选择 PAL 的人占 17.4%。
与 PAL 相比，远视桌面计算机工作者佩戴职业镜片可降低 CVS，尤其是正视眼。
