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KMID : 1011420170220040435
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Journal of Korean Ophthalmic Optics Society
2017 Volume.22 No. 4 p.435 ~ p.441
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A Study on Distance Visual Acuity and Contrast Sensitivity According to Degree of Eye Dominance
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Jung Su-A
Kim Hyun-Jung
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Abstract
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Purpose: This study was to analyze the correlation between distance visual acuity and contrast sensitivity according to degree of eye dominance.
Methods: 40 male and female adults in twenties (average age 22.78±1.90 years) were participated Degree of non-dominant and dominant eye was compared by measuring degree of eye dominance with line of sight and card movement. After measuring uncorrected and corrected distance visual acuity and contrast sensitivity (Hamilton-Veale Contrast Sensitivity Test, Hamilton-Veale, USA), correlation with degree of eye dominance by card movement standard was analyzed.
Results: Degree of eye dominance in dominant eye was significantly stronger than in non-dominant eye in both methods (line of sight, card movement). For both distance visual acuity and contrast sensitivity, there was a positive correlation with the increase in degree of eye dominance in non-dominant eye, but negative correlation with the increase in degree of eye dominance in dominant eye. Especially, there was statistically significant correlation between degree of eye dominance and uncorrected visual acuity in dominant eye, degree of eye dominance and contrast sensitivity in non-dominant eye.
Conclusions: Degree of eye dominance was correlated with distance visual acuity and contrast sensitivity and a balanced use of both eyes is recommended in daily life because visual acuity and contrast sensitivity were superior when both eyes were used in a balanced manner.
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KEYWORD
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Dominant eye, Degree of eye dominance, Visual acuity, Contrast sensitivity
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