Review on 👓 Optimal SEO: 4-Pack Unisex Reading Glasses, Anti Blue Light Eyeglasses for Men and Women - Classic Black Frames, Glasses Readers by Erin Abbott

First off, these glasses are a great buy for under $10. They come with everything in my picture including (to my surprise) a small blue LED and a test card. If you shine a blue LED on a test card and then turn it off, a purple dot will appear on the test card. It takes about 30 seconds for the purple stain to completely disappear. Then place the lens of one of these glasses between the test card and the LED and turn the LED back on. The test card will now remain white and the purple spot will no longer appear as the lens glass blocks blue light from reaching the card. I couldn't think of a better example to demonstrate the properties of your product than this test. Glory! I would definitely give these glasses a full five stars if it weren't for the fact that the frames seem too thin. I assume you like the classic look. However, I was hoping that the frames would feel more stable. The way they look now they seem to break very easily and I'm going to lose those amazing blue light blocking lenses. However, I am deducting a star for this reason. But seriously, four pairs for ten bucks? It's still worth it.