Comparison between optical and digital blur using near visual acuity.
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ABSTRACT:
SUBMITTER: Kordek D
PROVIDER: S-EPMC7873285 | biostudies-literature | 2021 Feb
REPOSITORIES: biostudies-literature
Publications
Comparison between optical and digital blur using near visual acuity.
Kordek David D Young Laura K LK Kremláček Jan J
Scientific reports 20210209 1
In a low-cost laboratory setup, we compared visual acuity (VA) for stimuli rendered with Zernike aberrations to an equivalent optical dioptric defocus in emmetropic individuals using a relatively short observing distance of 60 cm. The equivalent spherical refractive error of + 1, + 2 or + 4 D, was applied in the rendering of Landolt Rings. Separately, the refractive error was introduced dioptrically in: (1) unchanged Landolt Rings with an added external lens (+ 1, + 2 or + 4 D) at the subject's ...[more]
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