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  2. Vernier acuity - Wikipedia

    en.wikipedia.org/wiki/Vernier_acuity

    Vernier acuity (from the term "vernier scale", named after astronomer Pierre Vernier) is a type of visual acuity – more precisely of hyperacuity – that measures the ability to discern a disalignment among two line segments or gratings. A subject's vernier (IPA: / ˈ v ɜːr n ɪər /) acuity is the smallest visible offset between the ...

  3. Vernier scale - Wikipedia

    en.wikipedia.org/wiki/Vernier_scale

    A vernier scale (/ v ə r ˈ n iː ˈ ə r / ver-NEE-er), named after Pierre Vernier, is a visual aid to take an accurate measurement reading between two graduation markings on a linear scale by using mechanical interpolation, thereby increasing resolution and reducing measurement uncertainty by using vernier acuity to reduce human estimation ...

  4. List of optometric abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_optometric...

    See Visual_acuity#Legal_definitions: VA Nsc - VA Ncc Visual acuity with Near chart without correctors Visual acuity with eye chart at Near 15.7 inches (400 mm) and without (sc: Latin sine correctore) correctors (spectacles); Ncc is with (cc: Latin cum correctore) correctors. See Visual_acuity#Legal_definitions: VA OS Left visual acuity VA OD

  5. Preferential hyperacuity perimetry - Wikipedia

    en.wikipedia.org/wiki/Preferential_hyperacuity...

    PHP takes advantage of visual hyperacuity, also known as vernier acuity—the ability to identify the misalignment of visual objects. Visual hyperacuity is at least 10 times more sensitive than visual acuity, the ability to separate between distinct objects. [4]

  6. Hyperacuity - Wikipedia

    en.wikipedia.org/wiki/Hyperacuity

    Ewald Hering's model, published 1899, of how a Vernier acuity stimulus is coded by a receptor array. Receptors marked c signal a different position code along the horizontal direction from either the position a code or the position b code. [1] The sharpness of our senses is defined by the finest detail we can discriminate.

  7. List of medical roots, suffixes and prefixes - Wikipedia

    en.wikipedia.org/wiki/List_of_medical_roots...

    This is a list of roots, suffixes, and prefixes used in medical terminology, their meanings, and their etymologies. Most of them are combining forms in Neo-Latin and hence international scientific vocabulary. There are a few general rules about how they combine.

  8. US obesity rates drop for 1st time in a decade, with possible ...

    www.aol.com/us-obesity-rates-drop-1st-160026522.html

    For the first time in over a decade, obesity rates in the United States may finally be heading in the right direction and new weight loss drugs like semaglutide could be part of the reason why. A ...

  9. Visual acuity - Wikipedia

    en.wikipedia.org/wiki/Visual_acuity

    The definition of 6/6 is somewhat arbitrary, since human eyes typically have higher acuity, as Tscherning writes, "We have found also that the best eyes have a visual acuity which approaches 2, and we can be almost certain that if, with a good illumination, the acuity is only equal to 1, the eye presents defects sufficiently pronounced to be ...