enow.com Web Search

  1. Ad

    related to: eyesight test 20/20 meaning people who believe today is known as the best

Search results

  1. Results from the WOW.Com Content Network
  2. Snellen chart - Wikipedia

    en.wikipedia.org/wiki/Snellen_chart

    The first line consists of one very large letter, which may be one of several letters, for example E, H, or N. Subsequent rows have increasing numbers of letters that decrease in size. A person taking the test covers one eye from 6 metres or 20 feet away, and reads aloud the letters of each row, beginning at the top. The smallest row that can ...

  3. Visual acuity - Wikipedia

    en.wikipedia.org/wiki/Visual_acuity

    A reference value above which visual acuity is considered normal is called 6/6 vision, the USC equivalent of which is 20/20 vision: At 6 metres or 20 feet, a human eye with that performance is able to separate contours that are approximately 1.75 mm apart. [9] Vision of 6/12 corresponds to lower performance, while vision of 6/3 to better ...

  4. Eye chart - Wikipedia

    en.wikipedia.org/wiki/Eye_chart

    An example of the Landolt C eye chart (also known as the Japanese eye chart.). Numerous types of eye charts exist and are used in various situations. For example, the Snellen chart is designed for use at 6 meters or 20 feet, and is thus appropriate for testing distance vision, while the ETDRS chart is designed for use at 4 meters. [16]

  5. Eye examination - Wikipedia

    en.wikipedia.org/wiki/Eye_examination

    An eye examination, commonly known as an eye test, [1] is a series of tests performed to assess vision and ability to focus on and discern objects. [2] It also includes other tests and examinations of the eyes. [2] Eye examinations are primarily performed by an optometrist, ophthalmologist, or an orthoptist.

  6. List of optometric abbreviations - Wikipedia

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

    Binocular single vision: BV: Binocular vision: BVD: Back vertex distance BVP: Back vertex power CD: Centration distance C/D: Cup–disc ratio CF: Count fingers vision – state distance c/o or c.o. Complains of CT: Cover test c/u: Check up CW: Close work Δ: Prism dioptre D: Dioptres DC: Dioptres cylinder DNA: Did not attend DOB: Date of birth ...

  7. Is Olympic Gymnast Stephen Nedoroscik Blind? What He’s Said ...

    www.aol.com/olympic-gymnast-stephen-nedoroscik...

    Nedoroscik’s ability to alternate his focus from one eye to the other, Dr. Flanary added, is a perk that likely helped his vision develop normally in both eyes, rather than just one.

  8. The 9 best rechargeable hearing aids, according to hearing ...

    www.aol.com/lifestyle/best-rechargeable-hearing...

    These high-tech prescription hearing aids employ a sort of artificial intelligence technology known as a Deep Neural Network BrainHearing system to support the way your brain interprets sound by ...

  9. Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

  1. Ad

    related to: eyesight test 20/20 meaning people who believe today is known as the best