The backbone of the book consists of the 16 chapters on eye anatomy and physiology, but these are leavened by a variety of devices to inform us of the eye's evolution, development and intellectual ...

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 ...

This striking astronaut photo shows off an "eye-catching" impact crater in the Sahara Desert. The oculus-like structure is surrounded by migrating sand dunes that are capable of traveling more ...

The retina is an extremely complex structure. It's made up of at least ... Whatever light is not absorbed on this return trip passes out of the eye the same way it came in—through the pupil.

are movements that claim to strengthen and condition the muscles in your eye structure. Keep reading to learn more about eye yoga, as well as information about eye exercises that can help your ...

Was the Eye of the Sahara the real Atlantis, as many theorist claim? What does the evidence really reveal about this popular theory?