Structures of the eye

holds aqueous humor

holds aqueous humor

refracts light

helps maintain intraocular pressure

covers the anterior white surface of the eye

recycles aqueous humor

houses the blood vessels

controls shape of lens

control shape of lens

produces aqueous humor

refracts light

sclera and cornea

elevates and and laterally deviates gaze

• depresses eye
• medially deviates gaze

controls amount of light entering pupil (pupil size)

carries tears to lacrimal sac

produces tears

holds tears produced by the lacrimal gland

laterally deviates gaze

abducts eye

bends and focuses light onto retina

refracts light

changes shape to adjust focal point

elevates upper eyelid

medially deviates gaze

adducts eye

retina

responds to light

transmits visual information to the brain

seperates retina from cilliary body

covers the inner surface of the eyelids

holds vitreous humor

holds aqueous humor

allows light to enter the retina

where transduction occurs

contains neurons sensitive to light

responsible for color vision and visual acuity

non color vision

vision under conditions of low light (night vision)

maintains shape of eyeball

provides a site for muscle attachment

depresses and laterally deviates gaze

• elevates eye
• medially deviates gaze

holds lens in place

choroid, cilliary body, iris

refracts light

helps maintain intraocular pressure

holds the lens and retina in place