Which part of the eye controls the amount of light entering it?
A
Retina
B
Iris
C
Cornea
D
Lens
Correct Answer: Option B — Iris
Explanation:
The iris is the colored, muscular part of the eye that adjusts the size of the pupil to regulate light entry. It contracts in bright light a...
The iris is the colored, muscular part of the eye that adjusts the size of the pupil to regulate light entry. It contracts in bright light and dilates in dim conditions to optimize vision.