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Groucho glasses, also known as nose glasses, the beaglepuss, or the GM 20/20s, are a humorous novelty disguise which function as a caricature of the stage makeup used by the comedian Groucho Marx in his movies and vaudeville performances. They typically consist of black frames (either round or horn-rimmed) with attached features including bushy ...
Distance PD is the separation between the visual axes of the eyes in their primary position, as the subject fixates on an infinitely distant object. [ 2] Near PD is the separation between the visual axes of the eyes, at the plane of the spectacle lenses, as the subject fixates on a near object at the intended working distance. [ 3]
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".
Rimless glasses were a popular style of eyeglasses from the 1880s until into the 1960s, and re-emerged in popularity in the latter part of the 20th century and early 21st century. Apple founder and former CEO Steve Jobs wore round rimless eyeglasses for 18 years, from 1993 until his death in 2011. Despite these shifts, they are unique among ...
Typical sunglasses lenses are tinted for protection against bright light or polarized to remove glare; photochromic glasses are clear or lightly tinted in dark or indoor conditions, but turn into sunglasses when they come into contact with ultraviolet light. Most over-the-counter sunglasses do not have corrective power in the lenses; however ...
Corrective lens. A corrective lens is a transmissive optical device that is worn on the eye to improve visual perception. 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.
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