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Glasses — Glasses, also called eyeglasses or spectacles, are frames bearing lenses worn in front of the eyes, normally for vision correction, eye protection, or for protection from UV rays.Modern glasses are typically supported by pads on the bridge of the … Wikipedia
lens — noun 1 curved piece of glass ADJECTIVE ▪ strong, thick ▪ She wears glasses with very thick lenses. ▪ coloured/colored, tinted ▪ optical … Collocations dictionary
Sunglasses — For the Divine Brown song, see Sunglasses (song). Wearing sunglasses under direct sunlight: Large lenses offer good protection, but broad temple arms are also needed against stray light from the sides. Sunglasses or sun glasses are a form of… … Wikipedia
Corrective lens — A bifocal corrective eyeglass lens A pair of contact le … Wikipedia
Myopia — For other uses, see Myopia (disambiguation). Myopia Classification and external resources ICD 10 H … Wikipedia
microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… … Universalium
Optical aberration — v · d · e Optical aberration … Wikipedia
Contact lens — Contacts redirects here. For the software application, see Address book. A pair of contact lenses, positioned with the concave side facing upward … Wikipedia
Raymond Kurzweil — Infobox Person name = Raymond Kurzweil image size = 250px caption = Raymond Kurzweil birth date = Birth date and age|1948|2|12|mf=y birth place = Queens, New York, United States death date = death place = height = 5 7 weight = 145 lbs occupation … Wikipedia
Optician — An optician uses a lensometer to check eye glasses. An optician is a person who is trained to fill prescriptions for eye correction in the field of medicine … Wikipedia
rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 … Universalium