Question

How do you appreciate the working of Ciliary muscles in the eye?

Answer 1

1. Ciliary muscle is a ring shaped smooth muscle in the middle layer of the eye.
   
2. The ciliary muscle helps to change eyes focal length by changing radii of curvature of eye lens.
   
3. 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 its distance from the retina.
   
4. 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 a such a way that the image is formed on retina.
   
5. This process of adjusting focal length is called accommodation.
   
6. Ciliary muscles are useful to see distant, closer objects clearly.
7. This is a wonderful arrangement the nature provided in the eye.
8. If this is not provided we would not have lead the present comfortable life with regard to our vision.