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.

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 ...

Learn about the anatomy of your eyes and how each part of the eye works in order to create visual output. Does your baby really need an eye exam in their first year? Absolutely. The smaller and ...