Question

What is the function of ciliary muscles ​

Answer 1

Ciliary muscle is a ring shaped  smooth muscle in the eye's middle layer (vascular layer) which controls accommodation of viewing objects at varying distances and regulates the flow of aqueous humor into Schlemm's canal.

The ciliary muscle to which eye lens is attached and helps to change its focal length by changing radii of curvature of eye lens.

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 which is equal its distance from the retina.

Answer 2

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The main action of ciliary muscle is changing the shape of the lens which occurs during the accommodation reflex. In addition, when contracting, the longitudinal fibers of ciliary muscle widen the iridocorneal space and canal of Schlemm which facilitates the draining of eye fluid.