Sat November 26, 2011 By:

what is ciliary muscles?

Expert Reply
Sun November 27, 2011
A ring of smooth muscle fibers that is responsible for changing the shape of the lens in the eye to achieve accommodation. Suspensory ligaments connect the ciliary muscle to the lens. When the ciliary muscle is relaxed the ligaments are taut, and the lens is stretched thin enabling it to focus on distant objects. When the ciliary muscle is contracted the suspensory ligaments become less taut, and the lens becomes rounder so that it can focus on objects that are nearby.
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