EYEBALL DIAGRAMS...

Hello readers! Just wanna share with you guys simple eyeball diagrams for information purposes. :)

TERM & DESCRIPTION

1. Fovea is the center of the macula and gives the sharpest visio
2. Optic Nerve is a bundle of more than 1 million nerve fibers that carries visual messages from the retina to the brain
3. Ciliary body is the ciliary muscle is a ring-shaped muscle attached to the iris. It is important because contraction and relaxation of the ciliary muscle controls the shape of the lens
4. Iris is the colored part of the eye that regulates the amount of light entering the eye.
5. Lens is a clear part of the eye behind the iris that helps to focus light, or an image, on the retina
6. Pupil is the opening at the center of the iris. The iris adjusts the size of the pupil and controlsthe amount of light than can enter the eye
7. Cornea is the clear part o the iris focusing system located at the front of the eye
8. Sclera is the sclera is a tough white sheath around the outside of the eye-ball. This is the part of the eye that is referred to by the colloquial terms "white of the eye"
9. Choroid is the choroid layer is located behind the retina and absorbs unused radiation
10. Retina is light sensitive-tissue lining at the back of the eye. The retina converts light into electrical impulses that are sent to the brain through the optic nerve

References:

http://www.nei.nih.gov/health/eyediagram/
http://webvision.med.utah.edu/imageswv/sagitta2.jpeg
http://www.ivy-rose.co.uk/HumanBody/Eye/Anatomy_Eye.php