Function Of Each Part Of The Eye

Question 1

Iris

Answer 1

Coloured area which controls the size of the pupil

Question 2

Cornea

Answer 2

Clears window to the eye, helps focus the light rays

Question 3

Pupil

Answer 3

Hole which allows some light in to the lens and retina and protects the retina

Question 4

Retina

Answer 4

Contains 130 million light sensitive cells

Question 5

Optic nerve

Answer 5

Carries signals from the light cells to the brain