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KMID : 1011420180230040433
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Journal of Korean Ophthalmic Optics Society
2018 Volume.23 No. 4 p.433 ~ p.440
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Contrast Sensitivity of Dominant and Non-Dominant Eyes in Adults
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Shim Hyun-Suk
Shim Jun-Beom
Kim Young-Cheong
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Abstract
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Purpose: The purpose of this study was to investigate the difference in contrast sensitivity between the dominant and non-dominant eyes in adults.
Methods: A total of 99 adults (51 male and 48 female) with a mean age of 22.96±1.80 years (range, 21?29 years) were recruited. Their ocular dominance and contrast sensitivity were measured using the Hole-in-the-card test and Vector Vision (at spatial frequencies of 3, 6, 12, and 18 cpd), respectively. In addition, the cover test was performed for monocular contrast sensitivity measurements.
Results: While all subjects had better contrast sensitivity in the left eye (vs. right) at spatial frequencies of 6, 12, and 18 cpd, their dominant eye showed greater contrast sensitivity than the non-dominant eye at all spatial frequencies. Significant correlations were observed between contrast sensitivity and right/left eyes as well as dominant/non-dominant eyes (both in order of 18, 3, 12, and 6 cpd).
Conclusions: All subjects showed better contrast sensitivity in the left and non-dominant eyes at all spatial frequencies except 3 cpd. By measuring the contrast of the two eyes before deciding on the dominant eye, we can predict the eye with the better contrast sensitivity. The correlation between the dominant eye and contrast sensitivity showed a tendency to be higher. In the prescription of binocular vision balance, dominant eye and contrast sensitivity are important factors that should be considered together.
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KEYWORD
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Dominant eye, Non-dominant eye, Contrast sensitivity
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