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KMID : 1011420190240020137
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Journal of Korean Ophthalmic Optics Society
2019 Volume.24 No. 2 p.137 ~ p.141
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A Study on the Change of Dynamic Visual Acuity according to the Addition Power
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Kim Ha-Rim
Jeong Ju-Hyung
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Abstract
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Purpose: To assess changes in the dynamic visual acuity (DVA) in the presence of additional power.
Methods: Forty adults (mean age 24.02 years) without binocular vision disorders were enrolled in the DVA measurement group.
Binocular DVA was randomly measured using a 7A lens and a progressive lens with 1 D, 2 D, and 3 D additions.
Results: Mean DVA for a monofocal lens was 78.45 deg/sec. Mean DVA after the addition of a 1 D, 2 D, or 3 D lens was 69.30o/sec, 68.25o/sec, and 62.85o/sec, respectively. Therefore, mean DVA decreased with an increase in additional power.
Conclusions: DVA of the lenses with additional power were lower than the mean DVA for a monofocal lens by 15%. DVA values gradually decreased with the subsequent increase in the power of addition.
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KEYWORD
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Addition power, Monofocal lens, Progressive multifocal lens, Dynamic visual acuity, Static visual acuity
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