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    32.54+0.81 (+2.55%)

    at Fri, May 24, 2024, 4:00PM EDT - U.S. markets closed

    Nasdaq Real Time Price

    • Open 31.82
    • High 32.54
    • Low 31.60
    • Prev. Close 31.73
    • 52 Wk. High 48.47
    • 52 Wk. Low 23.10
    • P/E N/A
    • Mkt. Cap 775.39M
  1. Results from the WOW.Com Content Network
  2. America's Best Contacts & Eyeglasses - Wikipedia

    en.wikipedia.org/wiki/America's_Best_Contacts...

    America's Best Contacts & Eyeglasses. America's Best Contacts & Eyeglasses is a discount provider of eye examinations, eyeglasses and contact lenses, with over 900 retail locations in the United States as of 2023. [1] From 2005 to 2014, America's Best was a division of National Vision, a privately held portfolio company owned by Berkshire Partners.

  3. 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 ...

  4. 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 refractive errors such as myopia, hyperopia, and ...

  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. List of soft contact lens materials - Wikipedia

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

    Types. The FDA classifies soft contact lenses into four groups for the US market. They are also subcategorized into 1st generation, 2nd generation, and 3rd generation lens materials. [6] These 'water-loving' soft contact lens materials are categorized as "Conventional Hydrophilic Material Groups ("-filcon"): Group. Water Content.

  7. Subjective refraction - Wikipedia

    en.wikipedia.org/wiki/Subjective_refraction

    Subjective Refraction is a technique to determine the combination of lenses that will provide the best corrected visual acuity (BCVA). It is a clinical examination used by orthoptists , optometrists and ophthalmologists to determine a patient's need for refractive correction, in the form of glasses or contact lenses.

  8. Pupillary distance - Wikipedia

    en.wikipedia.org/wiki/Pupillary_distance

    For people who need to wear prescription glasses, consideration of monocular PD measurement by an optician helps to ensure that the lenses will be located in the optimum position. [6] Whilst PD is an optometric term used to specify prescription eyewear, IPD is more critical for the design of binocular viewing systems, where both eye pupils need ...

  9. Anti-reflective coating - Wikipedia

    en.wikipedia.org/wiki/Anti-reflective_coating

    Anti-reflective coatings are often used in camera lenses, giving lens elements distinctive colors. Such colors indicate the wavelength of visible light least affected by the antireflective properties of the coating. A variety of colors can be produced whose precise hue depends entirely on the thickness of the coating.

  10. Essilor - Wikipedia

    en.wikipedia.org/wiki/Essilor

    Eyezen – Digitally surfaced lens marketed towards users of electronic devices; Xperio – Polarized sunglass lens; Optifog – Fog resistant lens technology; Stellest – Lens targeted towards young children, designed to slow the progression of myopia. Orma – Essilor's branding of the CR-39 lens material.

  11. Circle contact lens - Wikipedia

    en.wikipedia.org/wiki/Circle_contact_lens

    Circle contact lens. A circle contact lens, also known as a big eye contact lens and circle lens, is a cosmetic (non-corrective and decorative) contact lens that makes the eye's iris appear larger. It has become a trend throughout East, South and Southeast Asia and is largely produced in Japan, South Korea and China .