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  2. Contact lens - Wikipedia

    en.wikipedia.org/wiki/Contact_lens

    Although many brands of contact lenses are lightly tinted to make them easier to handle, cosmetic lenses worn to change eye color are far less common, accounting for only 3% of contact lens fits in 2004. In the United States, the FDA labels non-corrective cosmetic contact lenses as decorative contact lenses. Like any contact lens, cosmetic ...

  3. Orthokeratology - Wikipedia

    en.wikipedia.org/wiki/Orthokeratology

    Orthokeratology, also referred to as Night lenses, Ortho-K, OK, Overnight Vision Correction, Corneal Refractive Therapy (CRT), Accelerated Orthokeretology, Cornea Corrective Contacts, Eccentricity Zero Molding, and Gentle Vision Shaping System (GVSS), is the use of gas-permeable contact lenses that temporarily reshape the cornea to reduce ...

  4. List of soft contact lens materials - Wikipedia

    en.wikipedia.org/wiki/List_of_soft_contact_lens...

    planned replacement contact lenses. The US Food and Drug Administration (FDA) defines soft contact lenses as: made of soft, flexible plastics that allow oxygen to pass through to the cornea. Soft contact lenses may be easier to adjust to and are more comfortable than rigid gas permeable lenses.

  5. Who Is Actually Behind Costco's Kirkland Signature Products - AOL

    www.aol.com/actually-behind-costcos-kirkland...

    Less than $60. K-Sig’s contact lenses are manufactured by CooperVision, so it’s hard to argue with such glaring savings. batuhan toker/istockphoto. Fish Oil Pills: Trident Seafoods.

  6. Acuvue - Wikipedia

    en.wikipedia.org/wiki/Acuvue

    Acuvue (from "Accurate view") is a brand of disposable contact lenses made in Jacksonville Florida and Limerick-based Vistakon, a subsidiary of Johnson & Johnson (J&J).

  7. Optics and vision - Wikipedia

    en.wikipedia.org/wiki/Optics_and_vision

    Glasses or "spectacles" are corrective lenses worn on the face a short distance in front of the eye. Contact lenses are worn directly on the surface of the eye. Intraocular lenses are surgically implanted most commonly after cataract removal, but recently for purely refractive purposes. Myopia (short sightedness) requires a divergent lens ...

  8. Essilor - Wikipedia

    en.wikipedia.org/wiki/Essilor

    Essilor International is an international ophthalmic optics company that designs, manufactures and markets lenses to correct or protect eyesight. [1] Its headquarters is in Charenton-le-Pont (near Paris), France . It is the world's largest manufacturer of ophthalmic lenses. [2]

  9. 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.

  10. Parfocal lens - Wikipedia

    en.wikipedia.org/wiki/Parfocal_lens

    Many zoom lenses, particularly in the case of fixed-lens cameras, are actually varifocal lenses, which gives lens designers more flexibility in optical design trade-offs (e.g., focal length range, maximal aperture, size, weight, cost) than parfocal zoom, which is practical because of auto-focus, and because the camera processor can ...

  11. AC Lens - Wikipedia

    en.wikipedia.org/wiki/AC_Lens

    AC Lens is a privately held company based in Columbus, Ohio that sells contact lenses, eyeglasses and vision care products online. Origin [ edit ] Arlington Contact Lens Service, Inc (AC Lens) was formed in 1995 and launched in 1996 by Dr. Peter Clarkson in the back of an optometrist's office on the campus of Ohio State University in Columbus ...