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Anton Chekhov with pince-nez, 1903. Pince-nez (/ ˈ p ɑː n s n eɪ / or / ˈ p ɪ n s n eɪ /, plural form same as singular; [1] French pronunciation:) 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.
Rimless glasses lenses are held in place (or "mounted") by way of a series of screws, or hollow plastic double rivets (called "bushings" or "compression plugs") that fit into two holes in the lens. When bushings are used, the temples and bridge have barbed metal pins that lock into the bushings, creating a pressure seal that holds the lenses in ...
Motorcycle helmets and Bicycle helmets have face shields that protects the eyes against wind blast, dust, insects and impact in the event of a crash. Racing helmets also have face shields (narrower than motorcycle helmets) to protect against fire and impact. Riot protection helmets have visors to protect the eyes and face from projectiles and ...
Man with glasses. A woman with glasses. Glasses, also known as eyeglasses or spectacles, are vision eyewear with clear or tinted lenses mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms, known as temples or temple pieces, that rest over the ears for support.
Clear lens extraction, also known as refractive lensectomy, custom lens replacement or refractive lens exchange is a surgical procedure in which clear lens of the human eye is removed. Unlike cataract surgery , where the cloudy lens is removed to treat a cataract , clear lens extraction is done to surgically correct refractive errors such as ...
P rism lenses in glasses can help manage the misalignment of the eyes by bending the light in a way that the brain sees it coming in straight from both eyes. Botox injections to the muscles that ...
X-ray specs or X-ray glasses are an American novelty item, purported to allow users to see through or into solid objects. In reality, the spectacles merely create an optical illusion; no X-rays are involved. The current paper version is sold under the name "X-Ray Spex"; a similar product is sold under the name "X-Ray Gogs".
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