On this page we will describe all these parts of the eye.  Click on a link to go to that part or learn about the entire eye step by step by reading through the whole page:
 
 

Sclera coat - is a protective coating that covers the outside of the entire eye.

Cornea - is the transparent dome that covers the front of the eye.

Optic Nerve -is the thick nerve extending from the eye to the brain which transports the images that the eye receives to the brain where they are interpreted.

Lens - focuses the light on the retina, similar to the way a camera lens works.

Iris - is the muscle that adjusts the size of the pupil, and also varies in color from person to person.  The pupil is the empty hole in the iris.
 
 

Choroid - the pigmented tissue situated between the retina and the sclera coat.

 Back to top
 

Below is a graphic of the eye with the lens, iris, ciliary body and choroid added, to show their location.
The two muscles holding the lens in place are the ciliary muscles.

 Back to top

Blind Spot - is the area where the optic nerve and retinal blood vessels enter the eye.  It is blind because there are no rods and cones to make vision possible.  It is indicated in the image below by the purple dot.  To take a fun test on your blind spot, click here .
 
 

Retina- covers 2/3 of the eye.  It receives the focused image, and sends it to the optic nerve.

 Back to top

Blood vessels - run throughout the optic nerve, delivering blood to the eye.

 Back to top

Vitreous Humor - is a thick, clear fluid in the central area of the eye, that provides a cushion for the eye.

 Back to top

Muscles - hold the eye in place, and allow it to rotate.  There are actually six, but from this view there appear to only be two.

 Back to top

Below is a picture of the entire eye and all of its parts, all which work together to allow you to see.
The parts are colored matching their pictures above.

 Back to top