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  2. Contact lens - Wikipedia

    en.wikipedia.org/wiki/Contact_lens

    A pair of contact lenses, positioned with the concave side facing upward. Putting contacts in and taking them out. One-day disposable contact lenses with blue handling tint in blister-pack packaging. Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used ...

  3. Fairness to Contact Lens Consumers Act - Wikipedia

    en.wikipedia.org/wiki/Fairness_to_Contact_Lens...

    An act to provide for availability of contact lens prescriptions to patients, and for other purposes. The Fairness to Contact Lens Consumers Act (Pub. L. 108–164 (text) (PDF), 117 Stat. 2024, codified at 15 U.S.C. ch. 102 et seq.), also known as FCLCA, [citation needed] is a United States federal law that aims to improve consumer protection ...

  4. Is It Safe To Shower With Contacts In? Here’s What Experts Say

    www.aol.com/safe-shower-contacts-experts...

    “Contact lenses can warp over time, and your cornea can change shape,” Vadada said. “To make sure your lenses fit properly, and the prescription is right for you, see your eye doctor ...

  5. Corrective lens - Wikipedia

    en.wikipedia.org/wiki/Corrective_lens

    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.

  6. Medical prescription - Wikipedia

    en.wikipedia.org/wiki/Medical_prescription

    Medical prescription. A prescription, often abbreviated ℞ or Rx, is a formal communication from a physician or other registered healthcare professional to a pharmacist, authorizing them to dispense a specific prescription drug for a specific patient. Historically, it was a physician's instruction to an apothecary listing the materials to be ...

  7. Vertex distance - Wikipedia

    en.wikipedia.org/wiki/Vertex_distance

    Vertex distance. Vertex distance. Vertex distance is the distance between the back surface of a corrective lens, i.e. glasses (spectacles) or contact lenses, and the front of the cornea. Increasing or decreasing the vertex distance changes the optical properties of the system, by moving the focal point forward or backward, effectively changing ...

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