I love these things, I bought one a while back on woot and can confidently say they work. It's not just a yellow tint, there is obviously a special film covering the glasses. But I use these things all the time, in movie theaters, working on my computer, and playing games. My eyes have always been pretty susceptible to eye strain, my eyes would hurt after 45 minutes of staring at a screen. With these, I never get eye strain, or even feel like I've been staring at a screen. Also, they're incredibly light (although still durable) so I tend to forget I have them on. The one I bought are actually pretty stylish and look like normal glasses, so I don't feel awkward wearing them. My only complaint is that the film on the glasses picks up fingerprints like crazy. But at ~$30, it's totally worth it for working, watching, and playing.