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  2. Prism correction - Wikipedia

    en.wikipedia.org/wiki/Prism_correction

    Prism correction. Prism lenses (here unusually thick) are used for pre-operative prism adaptation. Eye care professionals use prism correction as a component of some eyeglass prescriptions. A lens which includes some amount of prism correction will displace the viewed image horizontally, vertically, or a combination of both directions.

  3. Corrective lens - Wikipedia

    en.wikipedia.org/wiki/Corrective_lens

    A pair of contact lenses, positioned with the concave side facing upward. 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.

  4. Contact lens - Wikipedia

    en.wikipedia.org/wiki/Contact_lens

    Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used by over 150 million people worldwide, and they can be worn to correct vision or for cosmetic or therapeutic reasons.

  5. Prism cover test - Wikipedia

    en.wikipedia.org/wiki/Prism_Cover_Test

    If correction (glasses or contact lenses) was worn at the time of measurement The fixation distance where the prism neutralised the deviation. That way we can gain an understanding as to whether it increases or decreases in size in different positions of gaze and therefore make a diagnosis of whether it is a concomitant or incomitant deviation.

  6. Eyeglass prescription - Wikipedia

    en.wikipedia.org/wiki/Eyeglass_prescription

    Eyeglass prescription. 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. If an eye examination indicates that corrective lenses are appropriate, the ...

  7. Scary reason you should never wash contact lenses with ... - AOL

    www.aol.com/lifestyle/2016-12-07-scary-reason...

    You can get an amoeba just from showering with your contacts, or sitting in a hot tub. Though the infection is rare, it can be life or vision-threatening. Luckily for that British teen, doctors ...