Ciliary muscles of human eye can contract or relax. How does it help in the normal functioning of the eye?
Ciliary muscles of human eye can contract or relax. How does it help in the normal functioning of the eye?

When the ciliary muscle relaxes, the eye lens becomes thinner, making it easier to perceive distant things. When the ciliary muscle contracts, the eye lens thickens, making it easier to view close things. The ciliary muscle aids in the proper functioning of the eye in this way.