The human eye is a simple ... they are totally different in terms of the amount of coma. Figure 3 shows an eye model with a real crystalline lens shape and two other models with other hypothetical ...

A new computational model developed by Flinders University experts helps to explain how cells in the human retina make us "see" the dark central region of a black hole graphic expand outwards.

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 ...