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KMID : 1011420200250010019
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Journal of Korean Ophthalmic Optics Society
2020 Volume.25 No. 1 p.19 ~ p.24
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Direction Changes in the Dominant Eye and Comparisonof Single-Eye Inset Amounts Depending on the View Distance
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Shim Jun-Beom
Shim Hyun-Suk
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Abstract
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Purpose: This study was conducted to determine the changes in the dominant eye and compare the single-eye inset amounts depending on the view distance.
Methods: The direction changes in the dominant eye and single-eye inset amounts were measured as the view distance was changed to 200 cm, 50 cm, 40 cm, and 33 cm in the direction of the dominant eye in 64 adults with no underlying disease (mean age: 23.59 ± 3.73 years; 35 men, 29 women).
Results: As a result, 59.5% of the right dominant eyes and 77.8% of the left dominant eyes showed varying direction changes in the dominant eye depending on the view distance (r = 0.583). Dominant eyes were found to show greater changes according to the viewing distance than those shown by non-dominant eyes. Differences in the single-eye inset amounts caused by changes in viewing distance showed a greater inset amount in the right direction than in the left direction at all viewing distances regardless of the direction of the dominant eye.
Conclusions: Since the direction of the dominant eye may vary depending on the viewing distance and the single-eye inset amount differs, it is recommended to determine the direction of the dominant eye and single-eye inset amount after conducting a dominant eye test at the target distance to be corrected.
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KEYWORD
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Dominant eye, Dominant eye test, Inset amount
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