Editing Ciliary body (section)

==Function==
The ciliary body has three functions: [[accommodation (eye)|accommodation]], [[aqueous humor]] production, and [[resorption]], and maintenance of the lens zonules for the purpose of anchoring the lens in place.

===Accommodation===
Accommodation essentially means that when the ciliary muscle contracts, the lens becomes more convex, generally improving the focus for closer objects. When it relaxes, it flattens the lens, generally improving the focus for farther objects.

===Aqueous humor===
The ciliary epithelium of the ciliary processes produces [[aqueous humor]], which is responsible for providing oxygen, nutrients, and metabolic waste removal to the lens and the [[cornea]], which do not have their own blood supply. Approximately 80% of aqueous humor production is carried out through active secretion mechanisms (the Na+K+ATPase enzyme creating an osmotic gradient for the passage of water into the posterior chamber) and twenty percent is produced through the ultrafiltration of plasma. [[Intraocular pressure]] affects the rate of ultrafiltration, but not secretion.<ref>{{cite journal |doi=10.1093/bjaceaccp/mkn015 |title=Intraocular pressure |journal=Continuing Education in Anaesthesia, Critical Care & Pain |volume=8 |issue=3 |pages=100–3 |year=2008 |last1=Murgatroyd |first1=H. |last2=Bembridge |first2=J. |doi-access=free }}</ref>

===Lens zonules===
The zonular fibers collectively make up the suspensory ligament of the lens. These provide strong attachments between the ciliary muscle and the capsule of the lens.