Which parts of the eye are most important when it comes to focusing light?

Related questions

1. What happens when ciliary muscles relax?
2. What is the function of iris and pupil?
3. What does eye pupil mean?
4. How does the human eye see?
5. What are the 3 coats of the eye?
6. How do eyes help us?
7. What is the structure of the eye and their function?
8. What is the white part of your eye called?
9. What happens when waves of light enter your eye?
10. What is the hole in the center of the iris?

Tags

1. #parts
2. #comes
3. #focusing
4. #light
5. #image
6. #perfect
7. #important
8. #cornea
9. #retina