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Belay glasses are eyeglasses with prismatic lenses that are used by belayers in rock climbing to avoid the neck strain associated with belaying.
Eyeglass prescription. An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist, that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient. If an eye examination indicates that corrective lenses are appropriate, the ...
Prism correction. Prism lenses (here unusually thick) are used for pre-operative prism adaptation. Eye care professionals use prism correction as a component of some eyeglass prescriptions. A lens which includes some amount of prism correction will displace the viewed image horizontally, vertically, or a combination of both directions.
X-ray specs. X-ray specs or X-ray glasses are an American novelty item, purported to allow users to see through or into solid objects. In reality, the spectacles merely create an optical illusion; no X-rays are involved. The current paper version is sold under the name "X-Ray Spex"; a similar product is sold under the name "X-Ray Gogs".
Torquil Campbell – singer-songwriter ( Stars) Brendan Canning – singer-songwriter ( Broken Social Scene, Valley of the Giants) Patricia Cano – jazz/Latin music singer and musical theatre actress. Lou Canon – singer-songwriter. George Canyon – country singer. Ben Caplan – folk musician. Alessia Cara – contemporary R&B.
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.
A polarized 3D system uses polarization glasses to create the illusion of three-dimensional images by restricting the light that reaches each eye (an example of stereoscopy). To present stereoscopic images and films, two images are projected superimposed onto the same screen or display through different polarizing filters .
Zenni Optical (formerly 19dollareyeglasses.com) is an American online retailer of prescription glasses and sunglasses. Founded in 2003 by Tibor Laczay and Julia Zhen, it is based in Novato, California . The company sells more than 2,000 types of prescription glasses and sunglasses but does not sell contact lenses.
Depending on the severity of symptoms, various treatment options are available to people with persistent ophthalmoplegia. For mild conditions, prism glasses can be prescribed to correct specific types of double vision.
Rave Cinemas, LLC. Rave Cinemas, formerly known as "Rave Motion Pictures", is a movie theater brand founded in 1999 and owned by Cinemark Theatres. It previously was headed by Thomas W. Stephenson, Jr., former CEO of Hollywood Theaters, and Rolando B. Rodriguez, former Vice President and Regional General Manager for Walmart in Illinois and ...