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The size of pupil is controlled by the _____(A) Cornea (B) Iris (C) Retina (D) Lens
By BYJU'S Exam Prep
Updated on: September 25th, 2023
(A) Cornea
(B) Iris
(C) Retina
(D) Lens
The size of the pupil is controlled by the iris. The black, muscular diaphragm known as the iris regulates the size of the pupil. The iris encloses the pupil, which is a little empty area. The amount of light entering the eye is regulated and controlled by the pupil.
Table of content
How Does Iris Control The Size of Pupil?
- In order to control the size of the pupil, the iris contracts and relaxes.
- The pupil enlarges to let more light into the eye when it is dark.
- The iris regulates the pupil, which in turn regulates how much light enters the eye. The iris is a membrane, while the pupil is merely an adjustable opening.
- The pupil shrinks in bright light to stop more light from penetrating the eye.
Summary:
The size of pupil is controlled by the _______. (A) Cornea (B) Iris (C) Retina (D) Lens.
The iris controls the size of pupil in the eye. The black muscular diaphragm in human eyes is called as iris that regulates the pupil’s size according to light.
