1. Human Visual System
Basic Anatomy

2. Cornea - transmits and focuses light into the eye

3. Iris - helps regulate the amount of light

4. Pupil - Responds to various degrees of illumination to control the amount of light that is let into the eye.
Pupil

5. Lens - the transparent structure behind the iris that focuses light rays onto the retina

6. Vitreous Humor – Maintains eyeball shape

7. Sclera - the outermost layer of the eye, helps maintain shape of the eye. AKA whites of eyes.

8. Choroid Coat - the vascular layer, in the middle of the eye, provides eye with nourishment

9. Retina -. the nerve layer that lines the back of the eye
Retina - the nerve layer that lines the back of the eye. The retina senses light and creates impulses that are sent through the optic nerve to the brain
Retina

10. Fovea - responsible for sharp central vision, such as reading or watching TV

11. Optic Nerve - the nerve that connects the eye to the brain
Optic Nerve - the nerve that connects the eye to the brain. It carries the impulses formed by the retina to the brain, where it is interpreted as images
Optic Nerve