Review on Henotin Blue Light Blocking Reading Glasses 4-Pack for Women and Men with Spring Hinge, Computer Readers with Anti-UV Ray, Square Nerd Eyeglasses by April Knowles

I went through hell to get this! I ordered two identical boxes in black, pink, clear and my favorite color mottled chocolate. This order was dispatched and delivered within a few days - unfortunately none of the TWO boxes I bought had a tensioning tool which is misleading! . My first and first purchase was an absolute nightmare. I originally ordered them from a third party only to find out they would take 3-4 weeks to arrive long after purchase. abort attempt. In the meantime I've placed this second order the same as the first, except Revain shipped and sold it. Neither the original order nor the Revain two boxes contained a tensioning tool. That's very disappointing. My general opinion on these lenses (4 clear, 4 pink, 4 black and 4 chocolate heather) is that they are stylish, but I'm not sure if they filter blue light. There is absolutely no color difference compared to the others I bought at the ophthalmologist. I used them to watch TV (85 inch TV) and there was no difference. Not with the light on and not with the light off. Unfortunately I am currently stuck with 4 sets with 4 identical colors (16 pairs). I'll do more research to find ones that actually block blue light from TVs, phones, chromebooks, etc!