demeanor when they are not in their superhero personae: Superman is well known for wearing 1950s-style horn-rimmed glasses as Clark Kent, while Wonder Woman wears either round, Harold Lloyd-style glasses or 1970s-style bug-eye glasses as Diana Prince. An example of the halo effect is seen in the stereotype that those who wear glasses are intelligent. This belief can have positive consequences for people who wear glasses, for example in elections. Studies show that wearing glasses increases politicians' electoral success, at least in Western cultures. Styles In the 20th century, eyeglasses came to be considered a component of fashion; as such, various different styles have come in and out of popularity. Most are still in regular use, albeit with varying degrees of frequency. Aviator sunglasses Browline glasses Bug-eye glasses Cat eye glasses GI glasses Goggles Horn-rimmed glasses Lensless glasses Monocle Pince-nez Rimless glasses Sunglasses Wayfarer sunglasses Windsor glasses See also Adjustable-focus eyeglasses Baden-Powell's unilens Eye examination Eyeglass prescription History of optics X-ray vision Plurale tantum Notes References General bibliography . . External links Spectacles Gallery at the British Optical Association Museum . , on eyes and how eyeglasses correct vision (page 120). "Common Spectacles Styles before, during and after the Civil War" (2012 article) via the Internet Archive; Antique Eyeglasses in America. Corrective lenses Eyewear Italian inventions Ophthalmology Protective gear Sports equipment