Ziliarmuskels
Ziliarmuskels, also known as ciliary muscles, are smooth muscles located in the ciliary body of the eye. They play a central role in accommodation, the process by which the eye adjusts focus for objects at different distances.
The ciliary muscle consists of two main fiber layers: a circular (sphincter) layer that forms a ring
Contraction of the circular ciliary muscle relaxes the zonular fibers, allowing the lens to become more convex
Parasympathetic input from the oculomotor nerve (CN III) via the Edinger–Westphal nucleus and the ciliary ganglion
With aging, the lens loses elasticity, diminishing accommodative ability and contributing to presbyopia. Understanding ciliary muscle