The Role of Eye Movements During Reading in Patients with Age-Related Macular Degeneration (AMD)
The Role of Eye Movements During Reading in Patients with Age-Related Macular Degeneration (AMD)
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DOI：
10.1080/01658100902998732
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发表时间：
2009-01-01
影响因子：
0.8
通讯作者：
Feely, Mary
中科院分区：
文献类型：
--
作者：
Rubin, Gary S.;Feely, Mary
黄斑变性患者通常有特别的阅读困难，即使当文字被放大以弥补视力下降。本研究探讨阅读表现是否可以用眼动因素来解释。采用高速视频眼动仪对40例晚期AMD患者进行注视稳定性和眼球跳动评估。在标准文本的关键印刷尺寸下测量阅读速度。视觉敏锐度和对比敏感度与阅读速度无关，而注视稳定性、后退扫视比例和前进扫视大小均与阅读表现显著相关，占方差的74%。本文还讨论了这些发现对低视力训练方案的影响。
AMD patients often have particular difficulty reading, even when the text is magnified to compensate for reduced visual acuity. This study explores whether reading performance can be explained by eye movement factors. Forty patients with advanced AMD were tested with a high-speed video eye tracker to evaluate fixation stability and saccadic eye movements. Reading speed was measured for standardized texts viewed at the critical print size. Visual acuity and contrast sensitivity were unrelated to reading speed, but fixation stability, proportion of regressive saccades and size of forward saccades were all significantly associated with reading performance, accounting for 74% of the variance. The implications of these findings for low-vision training programmes are discussed.