College of Health & Life Sciences, School of Optometry, Aston University, Birmingham, UK; Department of Ophthalmology, New Zealand National Eye Centre, The University of Auckland, Auckland, New Zealand.
Centre for Eye Research Ireland, Technological University Dublin, Dublin, Ireland.
Ocul Surf. 2023 Apr;28:213-252. doi: 10.1016/j.jtos.2023.04.004. Epub 2023 Apr 14.
Eye strain when performing tasks reliant on a digital environment can cause discomfort, affecting productivity and quality of life. Digital eye strain (the preferred terminology) was defined as "the development or exacerbation of recurrent ocular symptoms and/or signs related specifically to digital device screen viewing". Digital eye strain prevalence of up to 97% has been reported, due to no previously agreed definition/diagnostic criteria and limitations of current questionnaires which fail to differentiate such symptoms from those arising from non-digital tasks. Objective signs such as blink rate or critical flicker frequency changes are not 'diagnostic' of digital eye strain nor validated as sensitive. The mechanisms attributed to ocular surface disease exacerbation are mainly reduced blink rate and completeness, partial/uncorrected refractive error and/or underlying binocular vision anomalies, together with the cognitive demand of the task and differences in position, size, brightness and glare compared to an equivalent non-digital task. In general, interventions are not well established; patients experiencing digital eye strain should be provided with a full refractive correction for the appropriate working distances. Improving blinking, optimizing the work environment and encouraging regular breaks may help. Based on current, best evidence, blue-light blocking interventions do not appear to be an effective management strategy. More and larger clinical trials are needed to assess artificial tear effectiveness for relieving digital eye strain, particularly comparing different constituents; a systematic review within the report identified use of secretagogues and warm compress/humidity goggles/ambient humidifiers as promising strategies, along with nutritional supplementation (such as omega-3 fatty acid supplementation and berry extracts).
在依赖数字环境的任务中,眼睛疲劳会引起不适,影响工作效率和生活质量。数字眼疲劳(首选术语)被定义为“与数字设备屏幕观看相关的反复发作的眼部症状和/或体征的发展或恶化”。由于没有以前商定的定义/诊断标准,以及当前问卷的局限性,无法将这些症状与非数字任务引起的症状区分开来,因此报告的数字眼疲劳患病率高达 97%。客观体征,如眨眼率或临界闪烁频率变化,不是数字眼疲劳的“诊断”,也没有经过验证具有敏感性。归因于眼表面疾病恶化的机制主要是眨眼率和完整性降低、部分/未矫正屈光不正和/或潜在的双眼视异常,以及任务的认知需求以及与等效非数字任务相比在位置、大小、亮度和眩光方面的差异。一般来说,干预措施尚未得到很好的确立;患有数字眼疲劳的患者应提供适当工作距离的全面屈光矫正。改善眨眼、优化工作环境和鼓励定期休息可能会有所帮助。基于目前的最佳证据,阻挡蓝光的干预措施似乎不是一种有效的管理策略。需要进行更多更大的临床试验来评估人工泪液缓解数字眼疲劳的有效性,特别是比较不同成分;报告中的系统评价确定了使用促分泌剂和温暖压缩/湿度眼罩/环境增湿器作为有前途的策略,以及营养补充(如ω-3 脂肪酸补充剂和浆果提取物)。