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KMID : 1011420190240030261
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Journal of Korean Ophthalmic Optics Society
2019 Volume.24 No. 3 p.261 ~ p.266
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A Study on Correlationbetween Degree of Eye Dominance and Binocular Visual Function:Focusing on Visual Acuity, Contrast Sensitivity, Static Stereopsis
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Jung Su-A
Kim Hyun-Jung
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Abstract
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Purpose: The purpose of this study was to investigate the relationship between degree of eye dominance and binocular visual function (visual acuity, contrast sensitivity, and static stereopsis).
Methods: The degree of eye dominance was measured in 36 adults in their 20s and 30s (average age, 21.08±2.05 years) who were divided into three groups based on the degree of eye dominance levels (Low, Middle, High). Binocular distance visual acuity (uncorrected, corrected), distance contrast sensitivity, and distance and near static stereopsis were measured. Binocular visual function measured using the degree of eye dominance level was compared and the correlation between degree of eye dominance level and binocular visual function was analyzed.
Results: As a result of measuring distance visual acuity (uncorrected and corrected), distance contrast sensitivity, fusional time, and distance and near static stereopsis, the visual function in the low degree of eye dominance group was superior to that of the high degree of eye dominance group, with the exception of fusional time; however, there was no statistically significant difference (p>0.05). As a result of analyzing the correlation between binocular visual function according to degree of eye dominance, a lower degree of eye dominance was associated with better visual function except for fusional time; however, this relationship was not significant (p>0.05).
Conclusions: Balanced use of both eyes aims to achieve outstanding visual function because binocular visual function with a relatively low degree of eye dominance representing the balanced use of both eyes, tends to be excellent.
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KEYWORD
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Dominant eye, Degree of eye dominance, Visual acuity, Contrast sensitivity, Stereopsis, Static stereopsis
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