认知需求,同时观看距离和数字眼疲劳。

IF 1.6 4区 医学 Q3 OPHTHALMOLOGY
Elianna Sharvit, Mark Rosenfield
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引用次数: 0

摘要

意义:数字设备在现代生活中无处不在。虽然数码眼疲劳的发病率很高,但其机制尚未完全阐明,目前也没有有效的治疗方法。目的:本研究旨在评估近距离任务的认知需求、呈现方式(数字或纸张)、工作距离与数字眼疲劳症状之间的关系。方法:30名年轻参与者完成4个30分钟的阅读任务。这四个条件(按随机顺序进行)包括:(1)在平板电脑上执行认知要求高的任务,(2)在同一设备上执行认知要求较低的任务。试验(3)和(4)与(1)和(2)相同,只是任务是在纸上完成的。受试者可以在任何他们觉得舒服的距离上阅读。在每个任务之前和之后,受试者完成了一份数字眼疲劳症状调查。在所有四种情况下,使用眼镜式装置(Clouclip)客观地测量工作距离。结果:虽然所有四种任务都诱发了显著的症状,但四种情况之间存在显著差异,其中平板电脑上的认知要求任务的增加最大。四种条件下的工作距离没有显著差异,所有任务的工作距离在前10分钟平均从31.6厘米减少到28.9厘米(p=0.001),工作距离在初始阶段后保持稳定。结论:任务诱发症状随认知需求和呈现方式的不同而不同。然而,工作距离对这些因素的影响并不显著。在每次试验的前10分钟内,用词距离减小,在所有条件下都明显接近于40厘米。在常规临床检测中应考虑采用较近的工作距离。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Cognitive demand, concurrent viewing distances, and digital eyestrain.

Significance: Digital devices are ubiquitous in modern daily life. Although a high prevalence of digital eyestrain has been reported, the mechanisms underlying digital eyestrain have not been fully elucidated, and there is currently no proven treatment.

Purpose: This study aimed to evaluate the relationship between the cognitive demand of a near task, mode of presentation (digital or paper), working distance, and symptoms of digital eyestrain.

Methods: Thirty young participants completed four 30-minute reading tasks. The four conditions (performed in randomized order) entailed (1) a cognitively demanding task performed on a tablet computer and (2) a less cognitively demanding task performed on the same device. Trials (3) and (4) were identical to (1) and (2) except that the tasks were performed on paper. Subjects could hold the reading task at any distance they felt comfortable. Before and immediately following each task, subjects completed a digital eyestrain symptom survey. For all four conditions, a spectacle-mounted device (Clouclip) was used to measure the working distance objectively.

Results: Although all four tasks induced significant symptoms, there was a significant difference between the four conditions, with the increase being greatest for the cognitively demanding task on the tablet computer. There was no significant difference in working distance for the four conditions, and all tasks showed a similar reduction in working distance (p=0.001), on average, from 31.6 to 28.9 cm, over the first 10 minutes, with the working distance remaining stable after this initial period.

Conclusions: Task-induced symptoms varied with both cognitive demand and mode of presentation. However, working distance did not vary significantly with these factors. The wording distance decreased during the first 10 minutes of each trial and was markedly closer than 40 cm for all conditions. The closer working distances being adopted should be considered during routine clinical testing.

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来源期刊
Optometry and Vision Science
Optometry and Vision Science 医学-眼科学
CiteScore
2.80
自引率
7.10%
发文量
210
审稿时长
3-6 weeks
期刊介绍: Optometry and Vision Science is the monthly peer-reviewed scientific publication of the American Academy of Optometry, publishing original research since 1924. Optometry and Vision Science is an internationally recognized source for education and information on current discoveries in optometry, physiological optics, vision science, and related fields. The journal considers original contributions that advance clinical practice, vision science, and public health. Authors should remember that the journal reaches readers worldwide and their submissions should be relevant and of interest to a broad audience. Topical priorities include, but are not limited to: clinical and laboratory research, evidence-based reviews, contact lenses, ocular growth and refractive error development, eye movements, visual function and perception, biology of the eye and ocular disease, epidemiology and public health, biomedical optics and instrumentation, novel and important clinical observations and treatments, and optometric education.
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