The real reason everyone loves to wear eye black is that it looks totally cool, like modern war paint (although the stickers don't look nearly as primal as the grease). Or at least that's how it ...

Difficult, but not impossible. Scientists have come up with scenarios through which the first eye-like structure, a light-sensitive pigmented spot on the skin, could have gone through changes and ...

They were one of the first groups of creatures to develop complex, compound eyes, where many individual lenses focus light onto groups of photoreceptor cells. This group of hard-shelled prehistoric ...

John Penn expected a doctor bill when he went to the McAlester Regional Health Center, but he was shocked by what came with it -- a separate $193 charge for the room. He asked the doctor: "Next ...

For instance, it can have negative effects on our sleep quality or even cause digital eye strain. While there isn't any solid research backing the use of blue light lenses for eye health ...

Lack of rest may not be the only thing causing dark circles and puffiness under your eyes. In fact, lifestyle factors like eating salty foods, smoking and drinking wine can all contribute to fluid ...

“They just look weird.” Four of the six eyes in each rhopalium are simple light-detecting slits and pits. But the other two are surprisingly sophisticated; like Nilsson’s eyes, they have ...

Here's What We Know Although no one can stare directly into the sun (nor should they), darker eyes have an easier time ...

Watch this video which explains how light travels into our eyes so that we can see things. Of course, you can only see something when there's light. And what is light? It's energy that zooms ...

We were happy to find that we only needed to use a small amount under each eye, and the gel-like cream felt light and hydrating on the skin—with zero burning or tingling despite having ...

They have no eyes but will contract into a ball when exposed to bright light. Hydras are interesting from an evolutionary perspective because their basic light-sensing equipment is very similar to ...