The impact of simulated astigmatism on functional measures of visual performance

Yang, Sung-Hua (2015) The impact of simulated astigmatism on functional measures of visual performance. Masters by Research thesis, Queensland University of Technology.

Abstract

Uncorrected refractive error, including astigmatism, is a leading cause of reversible visual impairment. While the ability to perform vision-related daily activities is reduced when people are not optimally corrected, only limited research has investigated the impact of uncorrected astigmatism. Given the capacity to perform vision-related daily activities involves integration of a range of visual and cognitive cues, this research examined the impact of simulated astigmatism on visual tasks that also involved cognitive input. The research also examined whether the higher levels of complexity inherent in Chinese characters makes them more susceptible to the effects of astigmatism. The effects of different powers of astigmatism, as well as astigmatism at different axes were investigated in order to determine the minimum level of astigmatism that resulted in a decrement in visual performance.

Impact and interest:

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ID Code: 84388
Item Type: QUT Thesis (Masters by Research)
Supervisor: Wood, Joanne & Collins, Michael
Keywords: Astigmatic blur, Astigmatic axis, Astigmatic power, Visual acuity, Reading rates, Visual processing speeds, Reading eye movements, Chinese characters
Divisions: Current > QUT Faculties and Divisions > Faculty of Health
Current > Institutes > Institute of Health and Biomedical Innovation
Institution: Queensland University of Technology
Deposited On: 22 Jul 2015 02:52
Last Modified: 23 Jun 2017 14:47

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