Found only in the retinas of humans and other primates, the fovea is responsible for visual experiences that are rich in colorful, spatial detail. Some reasons behind the fovea's unusual perceptual ...

A close-up photograph of what appears to be a light-brown human eyeball shows the organ's expansive, cavernous depths surrounding a seemingly bottomless, black pit that, together, mimics the intricate ...

Q: When first learning about genetics, we’re taught that blue eyes are recessive and brown is dominant, but what about green eyes? Also, what are the squiggly lines in light-colored eyes? — Tim Patten ...

Beauty may be in the eye of the beholder, but when it comes to what gives tiger's eye its beauty, geologists may have been wrong for years, according to Penn State geoscientists. The popular stone ...

A new study demonstrates the effectiveness of a widely-used eye injection to manage the previously untreatable rare condition ...

BECAUSE it is locked away inside the skull, the brain is hard to study. Looking at it requires finicky machines which use magnetism or electricity or both to bypass the bone. There is just one tendril ...