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  • Corrective lens

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    A bifocal corrective eyeglass lens A pair of contact lenses, positioned with the concave side facing upward A corrective lens is a lens typically worn in front of the eye to improve vision. 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. Contact lenses are worn directly on the surface of the eye. Intraocular lenses are surgically implanted most commonly after cataract removal, but can be used for purely refractive purposes.

  • Luxottica

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    Luxottica Group S.p.A. is an Italian eyewear company and the world's largest company in the eyewear industry. It is based in Milan, Italy. As a vertically integrated company, Luxottica designs, manufactures, distributes and retails its eyewear brands, including LensCrafters, Sunglass Hut, Apex by Sunglass Hut, Pearle Vision, Sears Optical, Target Optical, Eyemed vision care plan, and Glasses.com. Its best known brands are Ray-Ban, Persol, and Oakley. Luxottica also makes sunglasses and prescription frames for designer brands such as Chanel, Prada, Giorgio Armani, Burberry, Versace, Dolce and Gabbana, Miu Miu, DKNY, and Tory Burch. In January 2017, Luxottica announced a merger with Essilor The combined entity will command more than one quarter of global value sales of eyewear. In March 2018, the European Commission unconditionally approved the merger of Essilor and Luxottica. On October 1, 2018 the new holding company EssilorLuxottica was born, resulting in combined market capitalization of approximately €57 billion.

  • Glasses

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    Glasses, also known as eyeglasses or spectacles, are devices consisting of glass or hard plastic lenses mounted in a frame that holds them in front of a person's eyes, typically using a bridge over the nose and arms which rest over the ears. Glasses are typically used for vision correction, such as with reading glasses and glasses used for nearsightedness. Safety glasses provide eye protection against flying debris for construction workers or lab technicians; these glasses may have protection for the sides of the eyes as well as in the lenses. Some types of safety glasses are used to protect against visible and near-visible light or radiation. Glasses are worn for eye protection in some sports, such as squash. Glasses wearers may use a strap to prevent the glasses from falling off during movement or sports. Wearers of glasses that are used only part of the time may have the glasses attached to a cord that goes around their neck, to prevent the loss of the glasses and breaking. Sunglasses allow for better vision in bright daylight, and may protect one's eyes against damage from high levels of ultraviolet light.

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