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KMID : 1011420180230020111
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Journal of Korean Ophthalmic Optics Society
2018 Volume.23 No. 2 p.111 ~ p.116
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Comparison of Amount of at Distance and Near Phoria in Dominant Eye and Non-dominant Eye by Von Graefe Method
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Kim Jae-Sig
Shim Jun-Beom
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Abstract
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Purpose: This study amis to compare amount of phoria at distance and near in dominant eye and non-dominant eye by Von Graefe Method.
Methods: Sixty-six adults (male:31, female:35) with a average age of 24.18 without underlying disease participated in this study. Dominant eyes were determined by Hole in the card test. Amount of phoria at distance and near were measured by Von Graefe method, after setting prism on a dominant eye and non-dominant eye.
Results: In the right dominant eye, exophoria values were 0.56 ~ 1.23 Δ higher at distance and near and there was significant (p = 0.001, p = 0.009) when the measurement prism was set on a dominant eye. In the left dominant eye, there was more distance exophoria, when the measurement prism was set on non-dominant eye. in the near, when the measurement prism was set on a dominant eye. Degree of Esophoria was higher, but there was no significant difference between the two groups (p = 0.210, p = 0.962). The average of the phoria degree in dominant eye and non-dominant eye was significant (p = 0.001) that the mean of the right dominant eye was 2.65 ~ 2.77 Δ higher than the left dominant eye in distance Phoria. The mean of the right dominant eye was 4.15 ~ 4.32 Δ higher in exophoria direction in near distance and it was significant (p = 0.002).
Conculsions: In phoria test by Von Graefe method, the right dominant eye was higher amount of phoria than the left dominant eye in exophoria.
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KEYWORD
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Dominant eye, Non-dominant eye, Phoria, Von Graefe method
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