At first I was a little suspicious as to whether this would really help with my eyestrain & migraines when on the computer. I had tried a different brand with a yellow tint, and it did not help at all. Matter of fact, the yellow tint distorted words on my monitor making my headaches worse. But, I have to say I did notice a big difference in reduced eyestrain with these blue light filter glasses.. Especially, when I misplaced these glasses one morning and didn't use them for a couple hours, that's when I noticed how much these really did help.