These are not my first pair of computer - or - blue light blocking glasses. My previous glasses are wire frame and bent, so I was in need of a new pair. I bought a pair of these glasses for my wife and myself. We were both immediately impressed as soon as we put them on. Comfort and clarity are great and importantly - they block blue light. My wife just had eye surgery to repair a hole in her retina. Neither of us want to go through that again, so anything we can do - including blocking blue light - is a priority since my wife and I both spend a lot of time on our computers, laptops and phones. The glasses arrived quickly, were packaged securely and come with a nice carrying case. I'll definitely be purchasing these again.