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What is the role of ciliary …

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What is the role of ciliary muscles?

Posted by Mahi..... ♾ 5 years, 6 months ago

CBSE > Class 10 > Science

1 answers

Yogita Ingle 5 years, 6 months ago

Ciliary Muscles:

The ciliary muscle to which eye lens is attached helps the eye lens to change its focal length by changing radii of curvature of eye lens.
When the eye is focused on a distant object, the ciliary muscles are relaxed so that the focal length of eye lens has its maximum value, which is equal to its distance from the retina.
The parallel rays coming into the eye are then focused on the retina and we see the object clearly.
When the eye is focused on a closer object the ciliary muscles are strained and focal length of eye-lens decreases. The ciliary muscles adjust the focal length in such a way that the image is formed on retina and we see the object clearly.

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