Visual acuity | 合法醫療器材資訊網
Forallpracticalpurposes,20/20visionisequivalentto6/6.Inthedecimalsystem,acuityisdefinedasthereciprocalvalueofthesizeofthegap(measuredinarc ...
Clarity of vision
LogMAR – ETDRS ChartVisual acuity (VA) commonly refers to the clarity of vision, but technically rates a persons ability to recognize small details with precision. Visual acuity depends on optical and neural factors. Optical factors of the eye influence the sharpness of an image on its retina. Neural factors include the health and functioning of the retina, of the neural pathways to the brain, and of the interpretative faculty of the brain.[1]
The most commonly referred-to visual acuity is distance acuity or far acuity (e.g., "20/20 vision"), which describes someones ability to recognize small details at a far distance. This ability is compromised in people with myopia, also known as short-sightedness or near-sightedness. Another visual acuity is near acuity, which describes someones ability to recognize small details at a near distanc...
2020 vision 在英語 | 合法醫療器材資訊網
Visual acuity | 合法醫療器材資訊網
Visual Acuity | 合法醫療器材資訊網
What does 2020 vision actually mean? | 合法醫療器材資訊網
What does 2020 vision actually mean? | 合法醫療器材資訊網
What Does 2020 Vision Mean? | 合法醫療器材資訊網
What Does 2020 Vision Mean? | 合法醫療器材資訊網
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