Professor Lars Schmitz joins WIRED to guide us through a giant tree of life mapping the evolution of eyes in the animal ...

When evolution skeptics want to attack Darwin's theory, they often point to the human ... how could it have created the separate parts of the eye -- the lens, the retina, the pupil, and so forth ...

Cornea Tough, transparent covering over the front part of the eye. Convex in shape. Refracts light as it enters the eye (by a fixed amount). Iris Coloured part of the eye that contains muscles.

Learn about the anatomy of your eyes and how each part of the eye works in order to create visual output.