So, at the outset, nocturnal eyes gather more light than human eyes do ... with more sensory nerve cells than anywhere else in the body. The retina is home to two different kinds of light receptor ...

When evolution skeptics want to attack Darwin's theory, they often point to the human eye. How could something so complex, they argue, have developed through random mutations and natural selection ...

Follow me please class. We’re here at the optician’s to get a good look at a human eye and find out how it works. Human eyes are actually spheres. The part that we can see is only just the front.

As Oyster points out, the eye has several histories ... to the classical age of Greece, that documents human efforts to understand the eye." Part of the charm and, for me, the success ...

The muscles that control your eyes are the most active muscles in your body. 4 ... why you can sometimes see stars out of the corner of your eye at night, but when you look straight at them they seem ...