Your eye is a slightly asymmetrical globe, about an inch in diameter. The front part (what you see in the mirror) includes: Just behind the iris and pupil lies the lens, which helps focus light on ...

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 ...

It shouldn't be too difficult: the thing is 30 miles wide. Also known as the Eye of the Sahara, the Richat Structure is thought to be a heavily eroded circular symmetrical uplift — that is ...