Like most human traits, blue eyes are determined by genes, and no two people have exactly the same hue. It works a lot like ...

Blue light has very short, high energy waves. In fact, they’re only slightly longer and less powerful than UV waves, which are too short for people to see with the naked eye. Health experts have ...

People have been left scratching their heads over the 'hardest logic puzzle in the world', with many admitting defeat just a few minutes in. The blue eyes brainteaser has been shared on social ...

Have you ever wondered if people with blue eyes are related? Here’s the answer. What is the rarest hair color and eye color combination? That’d be red hair with blue eyes. There’s a little ...

Eyes that are not brown do not have different color pigments. Instead, they have less melanin. An iris with the least melanin will appear blue ... red or violet eyes. Occasionally, though, people ...

On Buton Island in Indonesia, a rare genetic disorder called Waardenburg Syndrome has led to a high ... vivid blue eyes that are so intense and bright that they often stop people in their tracks ...

That gives your eyes the red ... high can damage your optic nerve. Glaucoma is the name for a group of diseases that cause this condition. A common form is primary open angle glaucoma. Most people ...