Journal article
Shape discrimination thresholds among subjects with emmetropia and corrected myopia
Narayanan Rajeev, Eddie Tan, Raja Liyana, Andrew Metha
CLINICAL AND EXPERIMENTAL OPTOMETRY | TAYLOR & FRANCIS LTD | Published : 2015
DOI: 10.1111/cxo.12249
Abstract
BACKGROUND: Myopia is highly prevalent in some Asian countries yet the ability of subjects with myopia to discriminate shapes using radial frequency (RF) patterns—circular patterns that are defined by sinusoidal modulation of the radius in polar coordinates—is not well documented. In this psychophysical study, we explore the relative ability of subjects with corrected myopia to discriminate shapes using radial frequency patterns. Specifically, the aims were to find if there are any differences in modulation detection thresholds among subjects with emmetropia and corrected myopia and to establish thresholds as a function of myopic refractive error. METHODS: Shape discrimination thresholds wer..
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Funding Acknowledgements
The authors thank Cally, Ena, Jia Yang, Pei En, Wilfred and Yunting for their kind assistance with the data collection and Dr Zhu Mingxia for her assistance with data analysis. The authors have no financial or proprietary interest in any materials mentioned herein. The authors would like to thank Singapore Polytechnic for funding this project.