The iris adjusts the size of the pupil and controls the amount of light that can enter the eye.
(The iris; adjusts; the size of the pupil) (The iris; controls; the amount of light that can enter the eye) (the amount of light; can enter; the eye)
The iris The iris the amount of light
adjusts controls can enter
the size of the pupil
the amount of light that can enter the eye
the eye