Which of the following is used for controlling the amount of light entering the ...
Which of the following is used for controlling the amount of light entering the eye?
D) Cilary muscles
The correct answer is C.
(anatomy) The contractile membrane perforated by the pupil, which adjusts to control the amount of light reaching the retina, and which forms the colored portion of the eye (See pedia Iris (anatomy)).
(anatomy) The hole in the middle of the iris of the eye, through which light passes to be focused on the retina.
From these definitions, I think "Iris" I the correct answer.
Explanation provided by Tochukwu Alukwu
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