The eye

Cornea

refracts the light when eye enters in eye

Iris

control how much light enters the pupil

Lens

refracts light to make it go onto the retina

Retina

contains cones and rods (light receptors)

optic nerve

contain electrical impulses from eye to brain

Pupil

allow light to enter the eye

Sensory ligament

holds len in place

Ciliary muscle

change shape in lens

What happens to the pupils when they are exposed to bright light

Circular muscles contract

Radial muscles relax

What happens to the pupils when little light gets entered into the eye

Circular muscles relax

radial muscles contract