If evolution occurs through gradations, the critics say, how could it have created the separate parts of the eye -- the lens, the retina, the pupil, and so forth -- since none of these structures ...

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 ...

At this outer surface ... of this structure might have been to prevent pigmentation of the overlying skin, rather than to induce lens formation 145. If a primordial image-forming eye existed ...

3. The muscles that control your eyes are the most active muscles in your body. 4. Concentrated at the outer edges of the retina, rod cells are involved in peripheral vision. They are far more ...

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 amount of light entering the eye is controlled by a reflex action. The size of the pupil changes in response to bright or dim light. This is controlled by the muscles of the iris.

Eyes are the window to the soul or so said William Shakespeare, we now know just how inherent to our humanity this nonverbal ...