Measurement of visual acuity with a digital eye chart: optotypes, presentation modalities and repeatability
نویسندگان
چکیده
منابع مشابه
comparison of an italian chart with an iranian chart in visual acuity measurement
background: taking visual acuity is an important part of an eye routine examination. this study was conducted to compare visual acuity measured using an iranian digital tumbling e chart with visual acuity measured using an italian digital tumbling e chart as a familiar foreign chart. materials and methods: this study was carried out on 200 participants (400 eyes; healthy n=40, glaucoma n=40, re...
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Visual acuity is d&ned as the reciprocal of the visual angle, in minutes. subtended by a just resolvable stimulus. This critical dimension can be the gap in a Landolt C, the spatiat period of a grating or the offset of a vernier. etc. Acuity declines progressively from the fovea out to the periphery of the retina. It is down to half its maximum value at an eccentricity of only 30 min according ...
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ژورنال
عنوان ژورنال: Journal of Optometry
سال: 2021
ISSN: 1888-4296
DOI: 10.1016/j.optom.2020.08.007