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1-800 Contacts. 1-800 Contacts Inc. is an American contact lens retailer based in Draper, Utah. The brands that 1-800 Contacts use includes Johnson & Johnson Vision Care, Alcon, Bausch & Lomb and CooperVision. The company was founded as the industry's first way to buy contacts online and has since expanded to provide online prescription ...
The Utah-based company has acquired 6over6 Vision for an undisclosed amount. Based in Israel, 6over6 Vision previously raised $15 million to commercialize its in-home eye exams based on a ...
Adjustable focus eyeglasses are eyeglasses with an adjustable focal length. They compensate for refractive errors (such as presbyopia) by providing variable focusing, allowing users to adjust them for desired distance or prescription, or both. Current bifocals and progressive lenses are static, in that the user has to change their eye position ...
Lenses made of PMMA are called hard lenses. [ 5] Soft contact lenses were first produced in 1961 by Czech chemical engineer Otto Wichterle using polyhydroxyethylmethacrylate (pHEMA), a material that achieved long-term commercial application. Lenses made of polyacrylamide were introduced in 1971. [ 5]
Refractive errors are corrected with eyeglasses, contact lenses, or surgery. [1] Eyeglasses are the easiest and safest method of correction. [ 1 ] Contact lenses can provide a wider field of vision ; however they are associated with a risk of infection. [ 1 ]
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