Factors affecting reading performance of presbyopia : Reading Japanese and English

为探讨影响老视中年人阅读成绩的因素，本研究采用快速连续视觉呈现的朗读任务和视觉搜索的非词检测任务，测量了老视中年人的阅读速度（呈现时阈和反应时）。我们操纵字母大小，亮度对比度，观看距离，母语-非母语单词和笔画数。结果表明，这些因素中的每一个都会影响老花眼的阅读表现，并且老花眼的参与者比年轻人表现出更大的这些因素之间的相互作用：他们的阅读速度显着放缓时，阅读小字母在低亮度对比度在近距离。

To elucidate factors affecting reading performance of presbyopic middle-aged persons, we measured reading speed(presentation duration threshold and response time) in a reading-aloud task in rapid serial visual presentation and a non-word detection task in visual search. We manipulated letter size, luminance contrast, viewing distance, native-nonnative words, and number of strokes. The results showed that each of these factors affects reading performance in presbyopia, and that presbyopic participants show larger interactions among these factors than younger ones : Their reading speed is markedly slowed down when reading small letters in low luminance contrast at a near distance.