Department of Psychology, University of Minnesota, Minneapolis, Minnesota.
Moorfields Eye Hospital NHS Foundation Trust, London, United Kingdom.
Optom Vis Sci. 2020 Apr;97(4):249-256. doi: 10.1097/OPX.0000000000001503.
Access to digital text is increasingly widespread, but its impact on low-vision reading is not well understood.
We conducted an online survey of people with low vision to determine what assistive technologies they use for visual reading, their preferred text characteristics, and the time they devote to reading digital and hard-copy text.
One hundred thirty-three low-vision participants completed an online survey. Participants reported the nature and history of their low vision, their usage of different assistive technologies, and time devoted to five visual reading activities.
The three largest diagnostic categories were albinism (n = 36), retinitis pigmentosa (n = 20), and glaucoma (n = 15). Mean self-reported acuity was 0.93 logMAR (range, 0.1 to 1.6 logMAR). Mean age was 46 years (range, 18 to 98 years). Participants reported on percentage time spent reading using vision, audio, or touch (braille). Seventy-five percent of our participants did more than 50% of their reading visually. Across five categories of reading activities-work or education, news, pleasure, spot reading, and social networking-participants reported more time spent on digital reading than hard-copy reading. Eighty-nine percent of our participants used at least one technology from each of our two major categories of assistive technologies (digital content magnifiers and hard-copy content magnifiers) for visual reading.
Despite the growing availability of digital text in audio or braille formats, our findings from an online sample of people with low vision indicate the continuing importance of visual reading. Our participants continue to use technology to access both hard-copy and digital text, but more time is devoted to digital reading. Our findings highlight the need for continued research and development of technology to enhance visual reading accessibility.
数字文本的获取越来越普及,但它对低视力阅读的影响尚未得到充分了解。
我们对低视力人群进行了在线调查,以确定他们使用哪些辅助技术进行视觉阅读,他们喜欢的文本特征,以及他们用于阅读数字和纸质文本的时间。
133 名低视力参与者完成了在线调查。参与者报告了他们低视力的性质和历史、他们使用的不同辅助技术,以及用于五项视觉阅读活动的时间。
三个最大的诊断类别是白化病(n = 36)、色素性视网膜炎(n = 20)和青光眼(n = 15)。平均自我报告的视力为 0.93 logMAR(范围,0.1 至 1.6 logMAR)。平均年龄为 46 岁(范围,18 至 98 岁)。参与者报告了使用视力、音频或触觉(盲文)阅读的时间百分比。我们的 75%的参与者有超过 50%的阅读是通过视觉完成的。在五个阅读活动类别(工作或教育、新闻、娱乐、浏览阅读和社交网络)中,参与者报告在数字阅读上花费的时间多于纸质阅读。我们的参与者中有 89%至少使用了我们两种主要辅助技术类别(数字内容放大镜和纸质内容放大镜)中的一种技术进行视觉阅读。
尽管越来越多的数字文本以音频或盲文格式提供,但我们从低视力人群的在线样本中发现,视觉阅读仍然非常重要。我们的参与者继续使用技术来访问纸质和数字文本,但更多的时间用于数字阅读。我们的发现强调了继续研究和开发技术以增强视觉阅读可访问性的必要性。