Let me start by saying I have 2 other pairs of blue light glasses purchased on Amazon. I work in an office where I'm staring at my computer, other peoples computers, television presentations, all day every day. I started getting headaches and just feeling real eye strain, so I bought a pair of blue light glasses. They were great, and I immediately felt a difference. What I didnt realize was that the lenses were tinted yellow and I didnt like wearing them at work, so I kept them as my "work from home" glasses in my laptop bag. I immediately bought two more in the same style, for the office, without the yellow tint. Still felt the same "relief" of eye strain and less headaches. I decided that with everything I do at work, plus at home being on my phone texting and messaging and then watching tv, that I wanted to protect my eyes with a pair to wear at home. I honestly would have gotten the same ones but I came across these and they were super cute and I thought I would like a different style I could rotate to work if I wanted. These are amazing!! They are extremely well made for a gold wired frame. They do not feel flimsy at all and I'm ridiculously impressed with the packaging, box, cleaning accessories, etc they came with for the price. My other glasses were $20ea and came in a cloth bag wrapped in bubble wrap. Now for the real question though, do they work-worth the money? I couldnt imagine they wouldnt, they even send you a tester! But I can honestly say I've never thought to "test" my other glasses. And I'm very glad I never realized the bad reviews for these for "not working" before buying them. I may not have taken the chance. However, it made me question when I got them so I did some googling on how to test. Basically flashing this blue light on a piece of white paper you can see how bright and blue it is. Once you slide the frame under the light you can see the difference in how it dims it. I included pictures of all 3 of my glasses so you could see the difference and I know two of them work- the physical improvement is undeniable for me. Surprisingly, these glasses performed better than my work glasses, but not quite as good as the yellow tinted ones. The difference is slight though. (You can test using the card it came with but I wanted to show all 3 together and paper was easier). Honestly, when I think of so many people, myself included, who've gone years never protecting their eyes from blue lights of technology, I'm glad I'm doing something. I dont want to spend a fortune to buy something that might improve the blue light blockage slightly more especially at the sacrifice of comfort. Im extremely thrilled with these and will probably purchase this brand again when I wear my other ones out or decide to change style.