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Sunglasses: Difference between revisions
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<ref name="Leow">Leow YH, Tham SN. "UV-protective sunglasses[http://www.hisunglasses.com/] for UVA irradiation protection." ''Int J Dermatol.'' 1995 Nov;34(11):808-10. PMID 8543419.</ref> The [[Australian Competition and Consumer Commission]] has also reported that "[c]onsumers cannot rely on price as an indicator of quality" [http://www.accc.gov.au/content/index.phtml/itemId/614116/fromItemId/692835]. One unscientific survey even found a $6.95 pair of generic glasses with slightly better protection than [[Salvatore Ferragamo]] shades [http://wcbstv.com/seenon/local_story_100210432.html]. | <ref name="Leow">Leow YH, Tham SN. "UV-protective sunglasses[http://www.hisunglasses.com/] for UVA irradiation protection." ''Int J Dermatol.'' 1995 Nov;34(11):808-10. PMID 8543419.</ref> The [[Australian Competition and Consumer Commission]] has also reported that "[c]onsumers cannot rely on price as an indicator of quality" [http://www.accc.gov.au/content/index.phtml/itemId/614116/fromItemId/692835]. One unscientific survey even found a $6.95 pair of generic glasses with slightly better protection than [[Salvatore Ferragamo]] shades [http://wcbstv.com/seenon/local_story_100210432.html]. | ||
[[Image:Oakley half wire.JPG|thumb|[[Oakley, Inc.|Oakley]] sunglasses pass the | [[Image:Oakley half wire.JPG|thumb|[[Oakley, Inc.|Oakley]] sunglasses pass the ANSI Z87.1 requirements and offer UV protection]] | ||
More recently, [[High energy visible light]] (HEV) has been implicated as a cause of age-related macular degeneration<ref>Glazer-Hockstein C, Dunaief JL. "Could blue light-blocking lenses decrease the risk of age-related macular degeneration?" ''Retina.'' 2006 Jan;26(1):1-4. PMID 16395131</ref><ref>Margrain TH, Boulton M, Marshall J, Sliney DH. "Do blue light filters confer protection against age-related macular degeneration?" ''Prog Retin Eye Res.'' 2004 Sep;23(5):523-31. PMID 15302349</ref>, and some manufacturers design to block it. Sunglasses may be especially important for children, as their ocular lenses are thought to transmit far more HEV light than adults (lenses "yellow" with age). | More recently, [[High energy visible light]] (HEV) has been implicated as a cause of age-related macular degeneration<ref>Glazer-Hockstein C, Dunaief JL. "Could blue light-blocking lenses decrease the risk of age-related macular degeneration?" ''Retina.'' 2006 Jan;26(1):1-4. PMID 16395131</ref><ref>Margrain TH, Boulton M, Marshall J, Sliney DH. "Do blue light filters confer protection against age-related macular degeneration?" ''Prog Retin Eye Res.'' 2004 Sep;23(5):523-31. PMID 15302349</ref>, and some manufacturers design to block it. Sunglasses may be especially important for children, as their ocular lenses are thought to transmit far more HEV light than adults (lenses "yellow" with age). | ||
Some sunglasses also pass | Some sunglasses also pass ANSI Z87.1 requirements for basic impact and high impact protection. These are voluntary standards, so not all sunglasses comply, nor are manufacturers required to comply. In the basic impact test, a 1 in (2.54 cm) steel ball is dropped on the lens from 50 in (127 cm). In the high velocity test, a 1/4 in (6.35mm) steel ball is shot at the lens at 150 ft/s (45.72 m/s). In both tests, no part of the lens can touch the eye. | ||
== Water sunglasses == | == Water sunglasses == | ||
