We’ve been hearing for years now that the blue light streaming out of our computer screens isn’t great for us. Pop science suggests that it causesand , which is why iPhones and Android phones now have night modes that filter out blue light — although more recently, , as well. If you like the idea of blocking blue light, another approach is to get eyeglasses that automatically filter out the blue for you. Glasses USA has rolled out a line of frames with blue light-blocking lenses and is offering a if you check out with discount code BOGOFREE. That’s worth up to about $100, depending upon the frames you select.
Glasses USA has about three dozen styles of frames with blue-blocking lenses, and you can purchase them with nonprescription lenses that block 95% of the target blue light, or you can upgrade them to prescription lenses with the same blue-blocking tech. The lenses are also scratch-resistant, have an antiglare treatment and block UV light as well.
It’s worth asking the question: Do blue light-blocking lenses actually do what they claim? The answer is that it’s hard to know for sure and the jury is still out. CNET’s Sarah Mitroff tried to get to the bottom of, and she found that there’s conflicting evidence about how blue light exposure affects your eyes. One thing we can say is that science appears to show that blue light does affect your circadian rhythm, which can affect sleep, but there’s scant evidence to show that computer and phone screens contribute meaningfully to this problem.
While we wait for additional research, if you want to give blue-blocking glasses a spin, getting a free pair of frames is a cost-effective way to try out blue light-blocking glasses, which brings us back to Glasses USA.
CNET’s Cheapskate scours the web for great deals on tech products and much more. For the latest deals and updates, follow the Cheapskate on Facebook and Twitter. Find more great buys on the CNET Deals page and check out our CNET Coupons page for the latest promo codes from Best Buy, Walmart, Amazon and more. Questions about the Cheapskate blog? Find the answers on our .
The information contained in this article is for educational and informational purposes only and is not intended as health or medical advice. Always consult a physician or other qualified health provider regarding any questions you may have about a medical condition or health objectives.