Term
|
Definition
| Begins the focusing process; a crystal clear dome of transparent tissue that covers the front of the eye. Shape does not change through life. Responsible for 70% of refraction of light. |
|
|
Term
|
Definition
| Responsible for detailed focusing of eye; accommodation allows it to change it's shape; this movement is rapid and involuntary; construction is like that of an onion. |
|
|
Term
|
Definition
| Contains pigmentation which gives the eye it's color; shaped like a flattened doughnut; regulates the amount of light entering the eye through the vitreous chamber through pupil. |
|
|
Term
|
Definition
| The opening in the middle of the iris; controls the amount of light entering eye-in bright light it is small and constricted and in dim light it is large. |
|
|
Term
| ANTERIOR CHAMBER/AQUEOUS HUMOR |
|
Definition
| Chamber is filled with a clear water-like substance that replaces every 90 minutes and nourishes the lens and cornea; regulates the pressure inside the eye. |
|
|
Term
|
Definition
| The white part of the eye; dense tissue made up of fibers; covers the eye except the cornea; gives the eye shape; protects the inner eye |
|
|
Term
|
Definition
| (Inside Vitreous Chamber) A clear substance that fills the eye between the lens and the retina; light passes through on it's way to being focused onto the retina |
|
|
Term
|
Definition
| A thin film tissue made up of nerves; located at the back of the eye; senses light and brings images into focus; the eye's most sensitive inner layer. Contains rods and cones. |
|
|
Term
|
Definition
| Center of the retina that receives the focus of the image being viewed; nerve cells are more densely packed; consists mostly of cones. |
|
|
Term
| FOVEA CENTRALIS/CENTRAL FOVEA |
|
Definition
| The tiny pit in the center of the macula; the point of most accurate vision. |
|
|
Term
|
Definition
| Responsible for night vision and vision in black, white, and gray. |
|
|
Term
|
Definition
| Allow us to see in color. |
|
|
Term
|
Definition
| Nerve that runs from the eye to the brain, responsible for carrying the visual signal and information to the brain. |
|
|
Term
|
Definition
| The site where the optic nerve exits the eye; bundled together with the optic nerve are artery and vein combinations that fan out to nurture the retina; central retina vein drains blood from the retina to the optic disk-contains no cones or rods. |
|
|
Term
|
Definition
| The ability of the lens to adjust in order to keep objects focused in the eye. |
|
|
