If you're in front of computer screens all day, or if you suffer from headaches caused by blue light rays, blue light ...

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Gunnar is known best for its blue-light-blocking computer glasses that target gamers. If you go to major video game events like PAX, you've probably seen a pair.

The experts we spoke with agree that wearing blue-light blocking glasses after dark, for computer work or scrolling through your phone, may help you to doze off afterward and sleep better.

Blue-light-blocking glasses may have an anti-glare coating, which decreases the amount of light reflecting from your glasses to further reduce eye strain and make them more comfortable to use.

If your eyes hurt after looking at screens, don’t assume the culprit is blue light. You might spend extra money on a solution that doesn’t help much. “Blue light” refers to higher-energy ...