Pattern of reading eye movements during monovision contact lens wear in presbyopes

被引:10
作者
Zeri, Fabrizio [1 ,2 ]
Naroo, Shehzad A. [1 ]
Zoccolotti, Pierluigi [3 ,4 ]
De Luca, Maria [3 ]
机构
[1] Aston Univ, Sch Life & Hlth Sci, Ophthalm Res Grp, Birmingham B4 7ET, W Midlands, England
[2] Univ Milano Bicocca, Dept Mat Sci, I-20125 Milan, Italy
[3] IRCCS Fdn Santa Lucia, Neuropsychol Unit, I-00179 Rome, Italy
[4] Sapienza Univ, Dept Psychol, I-00176 Rome, Italy
来源
SCIENTIFIC REPORTS | 2018年 / 8卷
关键词
VISUAL-ACUITY; VISION; QUESTIONNAIRE; SUPPRESSION; PERFORMANCE; ADAPTATION; BLUR;
D O I
10.1038/s41598-018-33934-6
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Monovision can be used as a method to correct presbyopia with contact lenses (CL) but its effect on reading behavior is still poorly understood. In this study eye movements (EM) were recorded in fifteen presbyopic participants, naive to monovision, whilst they read arrays of words, non-words, and text passages to assess whether monovision affected their reading. Three conditions were compared, using daily disposable CLs: baseline (near correction in both eyes), conventional monovision (distance correction in the dominant eye, near correction in the non-dominant eye), and crossed monovision (the reversal of conventional monovision). Behavioral measures (reading speed and accuracy) and EM parameters (single fixation duration, number of fixations, dwell time per item, percentage of regressions, and percentage of skipped items) were analyzed. When reading passages, no differences in behavioral and EM measures were seen in any comparison of the three conditions. The number of fixations and dwell time significantly increased for both monovision and crossed monovision with respect to baseline only with word and non-word arrays. It appears that monovision did not appreciably alter visual processing when reading meaningful texts but some limited stress of the EM pattern was observed only with arrays of unrelated or meaningless items under monovision, which require the reader to have more in-depth controlled visual processing.
引用
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页数:9
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