eye structure and function

function of conjunctiva

• allow carbon dioxide to enter

• protects the eye from dust

• shaped the eye

• protects the eye exterior

function of suspensory ligament

• it is a fibre

• flexible so light can enter

• attach to ciliary muscle

• similar to ciliary muscle

function of iris

• adjusting the light

• allow light to enter

• allow eye hydration

• changing the size of pupil

function of aqueous humour/aqueous chamber

• watery

• refract lights onto retina

• refracts light onto lens

• conjunctiva back up

function of pupil

• allow light entering the eye

• allow light to pass through

• allow eye hydration

• basically protecting lens

function of cornea

• refract light onto lens

• reflect light onto lens

• reflect light onto retina

• refract light onto retina

function of lens

• big eyeball better image clarification

• giving and supplying protein through nerve

• change shape to see image clearly

• refract light onto retina

function of ciliary muscle/ciliary body

• attaching suspensory ligament

• contracting and relaxing muscle around the lens

• enables lens to change shape

• act as screen of the image

function of vitreous humour/vitreous body

• refract light onto retina

• helping stomach to digest

• enable image clarification

• a wall to protect macula/fovea

function of sclera

• protect the eyeball

• connecting to brain nerve

• give eye a square shape

• shaped the eyeball