at a certain time each night. That's because you might have heard the blue light disrupts your sleep by making you more alert. And that's true. Expose humans to more blue light, even during the day, ...

Many people use their electronic devices, including phones, tablets, and computers, for extended periods. Companies now sell screen protectors that reportedly block blue light and benefit eye health.

Have you ever been absolutely exhausted, then finally made it to bed, only to be wide awake after just a few minutes on your iPhone? Approximately 66% of Americans admit they bring their smartphones ...

Blue light usually comes from the sun but also from digital screens and LED lights. Some experts believe artificial sources may be causing eye damage in humans, but animal studies are inconclusive.

Blue-light-blocking glasses reduce how much blue light from electronic devices reaches your eyes. But it’s unclear how beneficial this actually is. You’re probably doing it right now — looking at a ...

What is blue light? “All the light we see is made up of different wavelengths of light,” says Vivienne Sinh Hau, MD, an ophthalmologist at Kaiser Permanente in Riverside, California. “Certain ...