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Glasses are often regarded as unattractive, and many people prefer to wear contact lenses for that reason. Contact lenses also provide much improved peripheral vision.
On the other hand, many people are attracted to people who wear glasses, and glasses are available in a wide range of styles, materials, and even designer labels.
Glasses can be a major part of personal expression, from the extravagance of Elton John and Dame Edna Everage, from Groucho Marx to John Denver all the way to the varied professional personas of eyeglass-wearing knowledge workers.
For some celebrities, glasses form part of the identity. American Sen. Barry Goldwater continued to wear lensless horn-rimmed spectacles after being fitted with contact lenses because he was not recognizable without his trademark glasses. Drew Carey continued to wear glasses for the same reason after getting corrective laser eye surgery. British comedic actor Eric Sykes, who became profoundly deaf as an adult, wears glasses that contain no lenses, but are in fact a bone-conducting hearing aid. Masaharu Morimoto wears glasses to separate his professional persona as a chef from his stage persona as Iron Chef Japanese.
In popular culture, glasses were all the disguise Superman and Wonder Woman needed to hide in plain view as alter egos, Clark Kent and Diana Prince, respectively.
Halo effect refers to the stereotype that the wearers of glasses are intelligent or, especially in teen culture, even geeks. This is a conception rooted in that the first people to wear glasses were those who did a lot of reading in an era when most people were illiterate. Some of those who find that wearing glasses may look nerdy, so turn to contact lenses instead. Some celebrities have mildly been accused of vanity because of this.Another unpopular aspect of is inconvenience. Even after mid-20th century, when light frames, such as of titanium, and very flexible ones were created, glasses still can cause problems during rigorous sports. The glass itself also can become greasy or trap vapour when eating hot food or swimming or walking in rain, reducing visibility significantly. Scraping, fracturing, and worse, breakage of the glass require time-consuming and costly professional repair.
Other kinds of glasses include tinted protective lenses, ranging from sunglasses, which protect the eye from glare and ultraviolet radiation, to specialized units that protect against extreme brightness and are used for welding and viewing eclipses.
Prescription sunglasses, which combine protection from bright light with vision correction, have become fairly common. Some glasses have photo-sensitive lenses that darken as the light grows brighter, combining the function of sunglasses and indoor glasses in a single device.
There are also safety glasses that are made of rigid plastic and designed to protect the eyes from flying objects. Some of these may have a prescription as well.
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