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  • 2011-08-02 (xsd:date)
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  • Does Wearing Sunglasses While Driving in the Rain Improve Vision? (en)
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  • Our first sighting of this Internet-circulated piece of advice dates to August 2006. While not everything claimed in the item is true, its central claim about driving in the rain while wearing sunglasses is. Wearing polarized sunglasses when driving in the rain during the day will help a driver see better. Polarized sunglasses work to block horizontal components of scattered or reflected light, which means they help counteract the scattering of light that atmospheric effects like fog or rain have on daylight. Notice, however, that this ability is limited to polarized sunglasses. Non-polarized lenses won't do anything other than make the field of vision darker, which means wearing them while driving in the rain would increase the hazard, not reduce it. Examples: In July 2010, a version began circulating that combined the sunglasses in the rain piece with the admonition against engaging cruise control on wet roads. One caveat though: Wearing polarized lenses while driving may make LCD dashboard displays quite a bit harder to read. In a nutshell: (en)
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