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About: Corrective lens     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:Whole100003553, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: Thingyago:WikicatCorrectiveLensesyago:WikicatLensesyago:Artifact100021939yago:Device103183080yago:Instrumentality103575240yago:Lens103656484yago:Object100002684yago:OpticalDevice103851341yago:PhysicalEntity100001930yago:Whole100003553 New Facet based on Instances of this Class

A corrective lens is a lens (i.e. a transmissive optical device) that is typically worn in front of the eye to improve daily 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.