Assess binocular and monocular visual acuity. IMPORTANT This calculator is intended as a convenient screener for visual acuity to be used on a mobile device and should not be used as a replacement for in-office testing. Evidence for smartphone apps for Snellen visual acuity is limited, and cur...
Visual acuity often is referred to as “Snellen” acuity. The chart and the letters are named for a 19th-century Dutch ophthalmologist Hermann Snellen (1834–1908) who created them as a test of visual acuity.One’s visual acuity is an indication of the clarity or clearness of one’s vision...
Visual Acuity Assessment with a DYOP Versus a Snellen Acuity Chart for Pre- and Post-Cataract SurgeryGordon, PeterBrewer, KimberlyOptometry & Visual Performance
...man Snellen) 发明了我们现今相当熟悉之视力测试图(visual acuity eye chart),该图又常称为史乃伦氏视力表 (Snellen’s chart… wenwen.soso.com|基于3个网页 2. 视觉作业 Knave(1984)提供的一个例子是在实地(在一个铸造厂)使用标准化视觉作业(visual acuity eye chart)所做的一项研究。他… ...
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Snellen visual acuity Distance visual acuity(VA) is directly related to the minimum angle of separation (subtended at the nodal point of the eye) between two bojects that allow them to be perceived as distinct. In practice, it is most commonly carried out using a Snellen chart,which utilizes...
Related to visual acuity test: Snellen chartvi·su·al (vĭzh′o͞o-əl) adj. 1. Of or relating to the sense of sight: a visual organ; visual receptors on the retina. 2. Seen or able to be seen by the eye; visible: a visual presentation; a design with a dramatic visual ef...
LogMAR charts address many of the deficiencies of the Snellen chart,and are the standard means of VA measurement in research and,increasingly,in clinical practice. LogMAR is an acronym for the base-10 logarithm of the minimum angle of resolution (MAR) and refers to the ability to resolve the...
visual acuity- sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart) acuity,sharp-sightedness visual modality,visual sense,vision,sight- the ability to see; the visual faculty 20/20,twenty-twenty- normal visual acuity, as measured by the ability ...
visual acuity 听听怎么读 英[ˈviʒuəl əˈkjuiti] 美[ˈvɪʒuəl əˈkjuɪti] 是什么意思 n. 视觉灵敏度;视敏度; 英英释义 visual acuity n.sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart)...