EYE ANATOMY

4. the clear tissue overlying the sclera (bulbar conjunctiva) that is continuous with the underside of the eye lid (palpebral conjunctiva)
6. the thin, vascular membrane between the retinal and sclera. The choroid is composed of layers of blood vessels that provide nourishment to the outer layers of the retina.
7. the thin, clear fluid between the cornea and the iris. This fluid provides nutrients to the cornea and the lens.
10. the colored part of the eye. The iris adjusts the size of the pupil and regulates the amount of light that enters the eye.
11. the dark center in the middle of the iris. The pupil determines how much light is let into the eye.
12. the nerve layer that lines the back of the eye. The retina senses light and creates impulses that are sent via the optic nerve to the brain.
13. the transparent structure behind the pupil that focuses light rays onto the retina.

1. the small, highly sensitive area in the retina. The macula is responsible for fine, detailed central vision.
2. the tough, opaque tissue that serves as the eye’s protective outer coat.
3. the part of the eye that produces aqueous humor.
5. the clear front window of the eye. The cornea provides most of the focusing power when light enters the eye.
8. the nerve that connects the eye to the brain. The optic nerve transmits electrical impulses from the retina to the brain, which interprets them as images.
9. the transparent, jelly-like substance that fills the eye’s cavity. It is composed mainly of water and helps to maintain the shape of the eye.