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Question
The focal length of an eye lens is changed due to the action of ————————– .
The focal length of an eye lens is changed due to the action of ————————– .
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Solution
The correct option is C Ciliary muscles
Ciliary muscles hold the eye-lens in its position and change its focal length by changing its thickness. Thus, when the ciliary muscles contract, the focal length decreases and when the ciliary muscles expand the focal length increases.
Ciliary muscles hold the eye-lens in its position and change its focal length by changing its thickness. Thus, when the ciliary muscles contract, the focal length decreases and when the ciliary muscles expand the focal length increases.
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