Eye Structure Flashcards
1
Q
What is the function of the sclera?
A
White outer layer of the eye, so it is tough and stops damage to the eyeball.
2
Q
What is the function of the cornea?
A
Changes the direction of the light so they enter the eye focus on the retina.
3
Q
What is the function of the iris?
A
Controls the size of the pupil. Contracts or relaxes to control the amount of light reaching the retina.
4
Q
What is the function of the ciliary muscles and suspensory ligaments?
A
Change the shape of the lens to fine focus light on to the retina.
5
Q
What is the function of the retina?
A
Has light sensitive cells that send impulses to the optic nerve.
6
Q
What is the function of the optic nerve?
A
Carries impulses from the retina to the brain so you can see something.
