July 2018
Volume 59, Issue 9
Open Access
ARVO Annual Meeting Abstract  |   July 2018
On the relationship between eye dominance and stereopsis: normative data
Author Affiliations & Notes
  • Yonghua Wang
    School of Ophthalmology and Optometry and Eye hospital, and State Key Laboratory of Ophthalmology, Optometry and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
  • Wenman Lin
    School of Ophthalmology and Optometry and Eye hospital, and State Key Laboratory of Ophthalmology, Optometry and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
  • Zhifen He
    School of Ophthalmology and Optometry and Eye hospital, and State Key Laboratory of Ophthalmology, Optometry and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
  • Fan Lu
    School of Ophthalmology and Optometry and Eye hospital, and State Key Laboratory of Ophthalmology, Optometry and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
  • Jiawei Zhou
    School of Ophthalmology and Optometry and Eye hospital, and State Key Laboratory of Ophthalmology, Optometry and Vision Science, Wenzhou Medical University, Wenzhou, Zhejiang, China
  • Robert Hess
    McGill Vision Research, Dept. Ophthalmology, McGill University, Montreal PQ, Quebec, Canada
  • Footnotes
    Commercial Relationships   Yonghua Wang, None; Wenman Lin, None; Zhifen He, None; Fan Lu, None; Jiawei Zhou, None; Robert Hess, None
  • Footnotes
    Support  This work was supported by a National Natural Science Foundation of China Grant NSFC 81500754 and a Wenzhou Medical University grant QTJ16005 to Jiawei Zhou, a National Key Research and Development Program of China grant (2016YFE0107000) to Fan Lu, and Canadian Institutes of Health Research Grants (no. 53346 and CCI-125686) and NSERC grant (no. 46528-11) to Robert F. Hess.
Investigative Ophthalmology & Visual Science July 2018, Vol.59, 2955. doi:https://doi.org/
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      Yonghua Wang, Wenman Lin, Zhifen He, Fan Lu, Jiawei Zhou, Robert Hess; On the relationship between eye dominance and stereopsis: normative data. Invest. Ophthalmol. Vis. Sci. 2018;59(9):2955. doi: https://doi.org/.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : In different individuals, the two eyes do not always make an equal contribution in binocular processing. The extent of perceptual eye dominance, a reflection of eye balance can be quantitatively measured using the binocular phase combination task. In this study, we provide a normative dataset for perceptual eye dominance using this task. Based on this, we also assessed the relationship between perceptual eye dominance and stereopsis.

Methods : 142 normal adults (average age: 24 ± 1.7 years old) with normal or corrected to normal monocular visual acuity (logMAR < 0.0) participated. Z800 pro head-mount goggles were used to dichoptically present stimuli to observers’ two eyes. Individual’s perceptual eye dominance was measured using the binocular phase combination task for a spatial frequency of 0.3 cycles/degree at different interocular contrast ratios when the stimuli to the non-dominant eye had a fixed contrast of 100%. Observers’ perceptual eye dominance was quantified in two ways: the averaged interocular contrast ratio when the two eyes were balanced (i.e., the balance point) and the binocular perceived phase when each eye viewed maximum contrast stimuli. Stereo acuities were measured with maximum contrast stimuli of identical spatial frequency using a comparable paradigm to that used in the eye dominance assessment.

Results : The averaged balance point was 0.93 ± 0.06 (mean ± SD), the averaged binocular perceived phase when both eyes viewed maximum contrast stimuli was -7.12 ± 6.51 degrees, and the averaged stereo acuity was 2.19 ± 0.34 log arc seconds in this group of normal adults. The perceived phase when the two eyes viewed maximum contrast stimuli (rho = 0.17, P = 0.04), rather than the balance point (rho = 0.15, P = 0.08) was significantly correlated with stereo acuity.

Conclusions : The mean perceptual eye dominance in normal adults is close to the ideal (i.e., balanced). Our eye dominance in phase combination and stereopsis may share some common pathways in binocular processing.

This is an abstract that was submitted for the 2018 ARVO Annual Meeting, held in Honolulu, Hawaii, April 29 - May 3, 2018.

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