Question:medium
The change in focal length of an eye lens is caused by the action of the
The change in focal length of an eye lens is caused by the action of the
Updated On: Jan 13, 2026
pupil
retina
ciliary muscles
iris
Show Solution
The Correct Option is C
Solution and Explanation
Ciliary muscle action alters the eye lens curvature, which in turn modifies the eye's focal length. Therefore, ciliary muscles are responsible for changes in the eye lens's focal length.
Option (C), ciliary muscles, is the correct answer.
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