Outer fibrous

Middle vascular

Inner nervouse 

Cornea

(Outer Layer)

Transparant

Admits light to interior of eye

Refraction/protection 

Collagen fibers

no blood vessels

Sclera

(Outer Layer)

White of the eye

Dense fibrous connective tissue

Limbus

(Outer Layer)

Junction of cornea and sclera

Keeps shape and protects

Parts of Uvea

(Middle Layer)

Choroid body

Iris

Ciliary body

Choroid

(Middle Layer)

Between the sclera and the retina

Pigment and blood vessels

forms the tapetum

Iris

(Middle Layer)

Pigmented muscular diaphragm

Changed size of pupil in response to light

Divids parts of aquais chamber  

Ciliary Body

(Middle Layer)

Ring shaped structure behind iris

Changes shape of lens for vision

Produces fluid in aquous chamber

Retina

(Inner Layer)

Recptors for seeing

Rods - light

Cones - color

Where the visual image is formed 

Photoreceptor layer

Anterior chamber

Posterior chamber

Keeps eye round and keeps normal pressure

Contains gelatinous fluid (vitreous humor)

Keeps pressure on eyeball

Reflects light

Lens

(Inner Layer)

Layers of fibers

Elastic and biconvex

Focuses a clear image to the retina

Thin transparent membrane

Lines eyeball and eyelid

Upper and lower folds of skin lined by thin, moist conjunctiva

Protects

Produce fat/wax

Wax

Tears

Third eyelid

Protects

Cartilidge