What's this about polarised sunglasses being bad for cycling (hexbear.net)

submitted 2 weeks ago by doublepepperoni@hexbear.net to c/urbanism@hexbear.net

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Finally got a pair of prescription sunglasses for summer, but apparently polarised lenses are potentially dangerous for cyclists according to Redditors due to light playing weird tricks on you. On my first day wearing them the only interesting thing I noticed was my phone screen shimmering like a foil trading card

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[-] mantra@lemmy.zip 20 points 2 weeks ago

Yeah, don't listen to those people. Polarized sunnies are awesome no matter what you're getting up to. They aren't playing tricks with the light, they are filters, plain and simple. Looking up how they work would be better than any explanation I can conjure up, if you're curious about the science. The aren't a safety issue, though. I have been wearing them for decades and put miles and miles on my bikes, both commuting and doing things like adventure races. Happy cycling!

[-] FloridaBoi@hexbear.net 12 points 2 weeks ago

Just rotate them 90° and you can see what gets filtered. Been using them for years. I can see where dark sunglasses of any kind can be potentially dangerous in less than bright daylight but one could plan ahead and keep a lighter tint set or one with those photochromic lenses.