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

Explanation

1) The ciliary muscles to which eye lens is attached the eye lens to change its focal length by changing the radii of curvature of the eye lens.
2) When the eye is focussed on a distant object, the ciliary muscles are relaxed. So that the focal length of eye lens has its maximum value.
3)The parallel rays coming into the eye are then focussed on to the retina and we see the object clearly.
4) When the eye is focussed on a closer object, the ciliary muscles are strained and focal legth of eye lens decreases.
5) The ciliary muscles adjust the focal length in such a way that the image is formed on retina and we see the object clearly. This process of adjusting focal length is called 'accomodation'.
6) Really this 'accommodation' is a wonderful phenomenon thorugh which we are able to see the distant and near objects.
7) So, I appreciate the working of ciliary muscles in the eye.