These are lovely glasses. I get compliments and haven't had a headache so far. I use them at work. I have 20/20 vision, but working on the computer strains my eyes. They seem to help with stress. They are very cheap. I had a friend's order from another company and paid triple what I did and didn't get what I got. I received a bag as a case, a cleaning cloth and a blue ray block tester. The glasses are light and fit well. At first you might even wonder if he has special lenses because they appear transparent. If you hold your glasses and tilt them you will notice purple rays/glare in the lenses. This protects your eyes. At least that's what the few people who wear glasses told me at work.
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