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Sunglasses allow better vision in bright daylight, and may protect one's eyes against damage from high levels of ultraviolet light. Typical sunglasses are darkened for protection against bright light or glare; some specialized glasses are clear in dark or indoor conditions, but turn into sunglasses when in bright light. Most sunglasses do not have corrective power in the lenses; however, special prescription sunglasses can be ordered. Specialized glasses may be used for viewing specific visual information (such as stereoscopy) or 3D glasses for viewing three-dimensional movies. Sometimes glasses with no corrective power in the lenses are worn simply for aesthetic or fashion purposes. Even with glasses used for vision correction, a wide range of designs are available for fashion purposes, using plastic, wire, and other materials. Speaking of commemorating great events, some fans have never merely a favorite team, but favorite player as well. You can find prints that preserve wins, personal victories, and record breaking achievements. How about Michael Jordan after leading the Chicago Bulls for the NBA championship? Barry Bonds damaging the homer record? Or maybe Lance Armstrong, cycling along the Champs Elysees to his 7th consecutive Tour de France victory? Sometimes these photos are even available in shadowboxes with memorabilia including autographs or programs. Another option is posters that seem to be like overgrown trading cards, along with your sports hero for action.