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Bioptics (device) Bioptics, also known as a bioptic in the singular, and sometimes more formally termed a bioptic telescope, is a term for a pair of vision -enhancement lenses. They magnify between two and six times, and are used to improve distance vision for those with severely impaired eyesight, especially those with albinism.
Bioactive metallic glass is a subset of bioactive glass, wherein the bulk material is composed of a metal-glass substrate and is coated with bioactive glass in order to make the material bioactive. The reasoning behind the introduction of the metallic base is to create a less brittle, stronger material that will be permanently implanted within ...
Bioptics. Bioptics (device), head-mounted eyeglasses of extreme magnification, which look somewhat similar to binoculars or which are mounted on existing glasses, to improve the distance vision of those with extreme vision impairment, most commonly those with albinism. Also known as a bioptic telescope. Bioptics (surgery), a combinatorial ...
GI glasses are eyeglasses issued by the American military to its service members. Dysphemisms for them include the most common " birth control glasses " (BCGs) and other variants. At one time, they were officially designated as regulation prescription glasses (RPGs). [citation needed] This was commonly said to mean "rape prevention glasses" due ...
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Pince-nez. Pince-nez (/ ˈpɑːnsneɪ / or / ˈpɪnsneɪ /, plural form same as singular; [1] French pronunciation: [pɛ̃sˈne]) is a style of glasses, popular in the late 19th and early 20th centuries, that are supported without earpieces, by pinching the bridge of the nose. The name comes from French pincer, "to pinch", and nez, "nose".
Pinhole glasses, also known as stenopeic glasses, are eyeglasses with a series of pinhole-sized perforations filling an opaque sheet of plastic in place of each lens. Similar to the workings of a pinhole camera, each perforation allows only a very narrow beam of light to enter the eye which reduces the size of the circle of confusion on the ...