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The Varilux Physio progressive lens is characterized by an improvement in colour contrast and wider fields of vision. It derives its performance from a patented innovation called the Twin RX Technology which combines a method for calculating lens optics, Essilor's Wavefront Magement System and advanced digital surfacing. [ 24 ]
After many years as rivals, Essel and Silor merged on 1 January 1972 to form Essilor, then the world's third-largest ophthalmic optical firm. [1] Its first year of existence was marked by the creation of Valoptec, a non-trading company composed of stockholder managers who held half the company's capital stock, and the purchase of Benoist-Bethiot, a French lens manufacturer specializing in ...
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. 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.
Costco shareholders voted down an investor proposal from a conservative think tank that urged management to investigate the business risks of its diversity initiatives. More than 98% of shares ...
Pearle Vision is an American chain of eye care stores. It is one of the largest franchised optical retailers in North America. The company was acquired by Luxottica (which has since merged with Essilor to form EssilorLuxottica), [2] an Italian eyewear company, in 2004.
Orthokeratology lens. 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 ...
All stores sell frames, lenses, sunglasses and accessories. Comprehensive service offerings include contact lens dispensing, free adjustments and repairs, and doctors of optometry at or next to every store. Visionworks also sells contact lenses online. [3] On June 27, 2019, VSP Global announced plans to acquire Visionworks. [6]
DRX may refer to: Desktop Replacement Extreme, a laptop made by Falcon Northwest; Discontinuous reception, a method in mobile communication; DRX (esports), a South ...
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