The value of Tablets as reading aids for individuals with central visual field loss: an evaluation of eccentric reading with static and scrolling text.
The value of Tablets as reading aids for individuals with central visual field loss: an evaluation of eccentric reading with static and scrolling text.
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DOI：
10.1111/opo.12296
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发表时间：
2016-07
期刊：
影响因子：
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通讯作者：
Anderson SJ
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文献类型：
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作者：
Walker R;Bryan L;Harvey H;Riazi A;Anderson SJ
智能手机和平板电脑等技术设备已广泛使用，并且越来越多地用作视觉辅助工具。这项研究评估了一款新颖的平板电脑应用程序 (MD_evReader) 的使用情况，该应用程序是为因黄斑变性而导致中心视野丧失的个人提供阅读辅助工具而开发的。 MD_evReader 应用程序将文本滚动为单行（类似于新闻收报机），旨在通过减少对眼动系统的需求并最大程度地减少感知拥挤的有害影响，使用偏心观看技术来提高阅读性能。将滚动文本的阅读性能与阅读静态句子进行比较，同样在平板电脑上呈现。二十六名视力低下的人（诊断为黄斑变性）阅读静态或动态文本（从右向左滚动），这些文本在平板电脑设备上以高对比度显示为单行。记录两种文本格式的阅读错误率和理解能力，并使用简单的问卷评估参与者使用该应用程序阅读的主观体验。静态和动态文本的平均阅读速度没有显着差异，等于或大于每分钟 85 个单词。两种文本格式的理解得分也相似，正确率约为 95%。然而，动态文本的阅读错误率明显低于静态文本 (p = 0.02)。参与者对 MD_evReader 的阅读体验的问卷调查评分非常积极，表明与通常的方法相比，他们更喜欢使用此应用程序进行阅读。我们的数据表明，滚动文本的阅读性能至少等于静态文本的阅读性能，并且在某些方面（阅读错误率）优于静态文本。通过了解阅读等认知任务所涉及的基础感觉运动过程而定制的应用程序具有作为视力障碍人士的辅助工具的巨大潜力。
Technological devices such as smartphones and tablets are widely available and increasingly used as visual aids. This study evaluated the use of a novel app for tablets (MD_evReader) developed as a reading aid for individuals with a central field loss resulting from macular degeneration. The MD_evReader app scrolls text as single lines (similar to a news ticker) and is intended to enhance reading performance using the eccentric viewing technique by both reducing the demands on the eye movement system and minimising the deleterious effects of perceptual crowding. Reading performance with scrolling text was compared with reading static sentences, also presented on a tablet computer. Twenty‐six people with low vision (diagnosis of macular degeneration) read static or dynamic text (scrolled from right to left), presented as a single line at high contrast on a tablet device. Reading error rates and comprehension were recorded for both text formats, and the participant's subjective experience of reading with the app was assessed using a simple questionnaire. The average reading speed for static and dynamic text was not significantly different and equal to or greater than 85 words per minute. The comprehension scores for both text formats were also similar, equal to approximately 95% correct. However, reading error rates were significantly (p = 0.02) less for dynamic text than for static text. The participants’ questionnaire ratings of their reading experience with the MD_evReader were highly positive and indicated a preference for reading with this app compared with their usual method. Our data show that reading performance with scrolling text is at least equal to that achieved with static text and in some respects (reading error rate) is better than static text. Bespoke apps informed by an understanding of the underlying sensorimotor processes involved in a cognitive task such as reading have excellent potential as aids for people with visual impairments.