Blue light from electronics is linked to problems like blurry vision, eyestrain, dry eye, macular degeneration, and cataracts. Some people have sleep issues. Here’s what you need to know.

How Blue Light Hurts Sleep. Your eyes aren’t good at blocking blue light. So almost all of it passes straight through to the back of your retina, which helps your brain translate light into images.

The front structures of the eye—the cornea and lens—block most UV light from reaching the retina. However, blue light passes through these protective barriers almost completely unfiltered ...

Here’s our guide to the best blue-light-blocking glasses available right now, starting with some of the research that’s been done on blue light.

Think blue light is hurting your sleep cycle? A new study suggests it can actually improve the overall sleep quality of older adults — but only if they time it right.

Blue-light-filtering glasses have become an increasingly popular solution for shielding our eyes from electronic screens’ near-inescapable glow—light that is commonly associated with eyestrain ...