I bought it because my husband works a lot on the computer, he spends up to 14 hours a day in front of the screen at work and he had trouble sleeping, Headache and feeling that his eyes hurt. After a few weeks of use, he said that at first you don't notice they're helping, they're very light, and because they're not colored, they feel natural. Then you take them off and notice the difference, you can tell they protected you. Now he can sleep better after wearing them, he has less eye strain, less headache. Good price, affordable but you still get a good product.
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