Review on 👓 4 Pairs Spring Hinge Reading Glasses, Blue Light Blocking Glasses for Women and Men - 4 Color Options, +1.50 Magnification by Kelly Burton

computer. I was curious. What's the difference between a $20 set of 4 and a pair that's around $200? Well, I like these better. Sure, an expensive set can last a lot longer, but the visual quality isn't much better. One thing that struck me is that the blue filter tester and flashlight they provide is there to prove that these glasses filter blue light that the tester is showing. However, the tester does not work on my expensive pair. It just tells me that the tester is set to a slightly different blue spectrum. But which spectrum is right or necessary. I can not say. If you need some good, inexpensive readers for your computer, I definitely recommend them.