Anatomy Of The Eye

Front 1

Front of the eye.

Does most of the focusing.

Back 1

Cornea

Front 2

Colored portion of eye
Function is to control the amount of light

passing into the eye

Back 2

Iris

Front 3

Hole in the iris through which light passes
Constricts in bright light, grows larger in dim light

Back 3

Pupil

Front 4

Transparent, living tissue
Changes shape to finely focus light rays on retina

Back 4

Lens

Front 5

Liquid between the lens and cornea.
Function is to provide oxygen and nutrients for the lens and cornea.

Back 5

Aqueous Humor

Front 6

Muscle which controls the shape of the lens

Back 6

Ciliary body

Front 7

Second layer of the eye, below the sclera
Function is to provide nutrients and oxygen to the retina and other portions of the eye

Back 7

Choroid

Front 8

Sensory layer that lines the back of the inside of the eye.
Contains light sensitive cells called rods and cones.

Back 8

Retina

Front 9

Center of the retina, location where fine vision occurs (reading)
Composed of mostly cone cells.

Back 9

Macula

Front 10

Center of the macula.
Very small area in which extremely fine vision occurs

Composed of only cone cells.

Back 10

Fovea

Front 11

Light sensitive cells, look like rods under a microscope. More sensitive than cones.
Enable humans to see in dim light.

Back 11

Rods

Front 12

Light sensitive cells, look like cones under a microscope
Enable humans to distinguish color.

Back 12

Cones

Front 13

The nerve that leads from the retina to the brain.

Back 13

Optic Nerve

Front 14

Transparent jelly-like substance filling the space behind the lens
Function is to maintain the shape of the eye.

Back 14

Vitreous body

Front 15

The tough, white, outer-covering of the eye.

Back 15

Sclera