Problem
A. Where in the brain do the axons in the optic nerve end up going?
B. What is the big black ring you see? What is the hole in the middle of the big black ring?
C. Now look at the lens, can you see through it? What does the world look like? If you cannot see through it, why do you think that is?
D. What is this attachment point (hint: flip over to the back of the eye and see if there is something at that spot)?
E. What is this layer in humans called?