1. What shape of lens is a human cornea?
2. What is the function of the iris? What part of the eye that we see in others is the iris?
3. What is the name of the fluid in the eye? What is its function?
4. What cells are responsible for sensing color? How are different types of these cells different?.
5. Is the image formed by the eye upright or inverted? How must this image be processed?
6. What allows the eye to focus? Explain by referring to the specific biological processes in play