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A corrective lens is a device that improves visual perception by correcting refractive errors. Learn about the different types of corrective lenses, such as glasses, contact lenses, intraocular lenses, and their prescriptions, uses, and advantages.
Orthokeratology is the use of gas-permeable contact lenses that temporarily reshape the cornea to reduce refractive errors such as myopia, hyperopia, and astigmatism. Learn about the history, mechanism, use, risks, and research of orthokeratology from this Wikipedia article.
Glasses are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes. They can be used for vision correction, eye protection, cosmetic purposes, or viewing specific visual information.
CR-39 is a polymer of allyl diglycol carbonate (ADC) with high abrasion resistance and low chromatic aberration. It is used for eyeglass lenses, fuel tanks, and as a solid-state nuclear track detector for alpha, proton and neutron radiation.
A lens is a device that focuses or disperses light by refraction. Learn about the origin, classification and applications of lenses in various fields of optics, such as telescopes, microscopes, spectacles and lighthouses.
A lenticular lens is an array of lenses that show different parts of an image when viewed from different angles. Learn about lenticular printing, corrective lenses, screens, 3D TV and color motion picture processes that use lenticular lenses.
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