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KMID : 1011420230280020071
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Journal of Korean Ophthalmic Optics Society
2023 Volume.28 No. 2 p.71 ~ p.75
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Comparison of Kinetic Visual Acuity between Dominant and Non-Dominant Eyes
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Shim Hyun-Suk
Kim Sang-Hyun
Kim Young-Cheong
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Abstract
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Purpose : The kinetic visual acuity (KVA) of adults in their 20s was measured in the binocular and monocular eyes, and the results were analyzed by classifying them into dominant and non-dominant eyes.
Methods : The eyes of 117 men and 103 women were fully corrected by subjective and objective refraction. Kinetic visual acuity was measured using a KVA device (KOWA AS-4A). The dominant eye was measured from a distance using the hole in the card test.
Results : The binocular KVA of all subjects was 0.45±0.22, whereas the KVA of the right and left eyes was 0.39±0.21 and 0.35±0.20, respectively; the binocular KVA was significantly higher than the monocular KVA (p<0.001). Men had KVA of 0.48±0.23 in both eyes, 0.41±0.22 in the right eye, and 0.38±0.20 in the left eye, whereas women had 0.42±0.20 in both eyes, 0.35±0.20 in the right eye, and 0.32±0.19 in the left eye. The KVA of the dominant eye was 0.39±0.21 and that of the non-dominant eye was 0.35±0.19, which was statistically significantly different (p=0.040). Among 211 subjects, 123 showed that KVA was better in the dominant eye than in the non-dominant eye. There are 34 cases where the dominant and non-dominant eyes are the same, and 63 cases in which the non-dominant eye was better than the dominant eye.
Conclusions : Binocular KVA was better than monocular KVA, and men had better KVA than women. KVA of the dominant eye was significantly higher than that of the non-dominant eye. In addition, the higher KVA of the dominant eye showed about twice as many distributions as binocular. The binocular KVA was significantly higher in the group with the higher KVA of the dominant eye.
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KEYWORD
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Dominant eye, Non-dominant eye, Kinetic visual acuity
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