Eye parts functions

Cornea

Bends and focus incoming light

Iris

Contrast pupil size to regulate the amount of light.

Lens

Focus light directs onto the retina.

Sclera

Protects inner eye and maintains eye ball shape.

Retina

Converts light into electrical nerve signals

Chloroid

Supplies blood, oxygen, and nutrients to the retina.

Fovea

Provides detailed central vision

Optic disc

Exit point for nerve fibers leaving the eye, creating blind spot

Optic nerve

Carries information from the retina to the brain

Vitreous humor

Keep retina in place and maintains eye round shape

Ciliary body

produces aqueous humor

Aqueous homor

keeps cornea hydrated

pupil

regulates amount of light that enters the eye

Zonules

Ligaments holding lens in place