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  2. Prism correction - Wikipedia

    en.wikipedia.org/wiki/Prism_correction

    Yoked prism can move the image away from primary gaze without the need for a constant head tilt or turn. [1] Prism correction is measured in prism dioptres. A prescription that specifies prism correction will also specify the "base". The base is the thickest part of the lens and is opposite from the apex.

  3. Corrective lens - Wikipedia

    en.wikipedia.org/wiki/Corrective_lens

    A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. The most common use is to treat refractive errors: myopia, hypermetropia, astigmatism, and presbyopia. Glasses or "spectacles" are worn on the face a short distance in front of the eye.

  4. Eyeglass prescription - Wikipedia

    en.wikipedia.org/wiki/Eyeglass_prescription

    Eyeglass prescription. Using a phoropter to determine a prescription for eyeglasses. An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient.

  5. Optical coating - Wikipedia

    en.wikipedia.org/wiki/Optical_coating

    Optical coating. An optical coating is one or more thin layers of material deposited on an optical component such as a lens, prism or mirror, which alters the way in which the optic reflects and transmits light. These coatings have become a key technology in the field of optics. One type of optical coating is an anti-reflective coating, which ...

  6. People Who Never Need Glasses Do This One Thing Every Day - AOL

    www.aol.com/people-never-glasses-one-thing...

    Not really. "Some people need glasses when they're young—before 45," explains , of Cleveland Clinic’s Cole Eye Institute. "If you don't need glasses before your 40s, chances are you will need ...

  7. I tried those Pair Eyewear glasses with the magnetic frames ...

    www.aol.com/lifestyle/tried-those-pair-eyewear...

    With prices starting at $60 per frame, prescription lenses included, Pair is already pretty affordable. ... (which effectively turn your glasses into sunglasses — regular tops are just frames ...

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