Hello! I just want to let you know that my husband, Mike, and I had never heard of Gunnar Optiks until a couple of weeks ago. A friend of ours let us borrow a pair of his glasses and we don’t want to give them back!! My husband is a web designer and I am a budding photographer, so we work on our computers all day long. My husband has tested them out more than I have, but since using the glasses for only 2 weeks, he has NOT had a headache! These things are amazing!! We must say, we are VERY impressed and OBSESSED!! Thank you for creating such a FANTASTIC product!