The pars plicata (also known as corona ciliaris[1]) (Latin: folded portion) is the folded and most anterior portion of the
ciliary body of an eye. The ciliary body is a part of the
uvea, one of the three layers that comprise the
eye. The pars plicata is located anterior to the
pars plana portion of the ciliary body, and posterior to the
iris. The lens
zonules that are used to control
accommodation are attached to the pars plana.
The pars plicata is the portion of the ciliary body that is responsible for producing
aqueous humor, the fluid of the
anterior chamber.[2] The production of too much aqueous humor, or reabsorption that occurs too slowly, can lead to increases in the
pressure within the eye.
References
^Lee Ann, Remington. Clinical anatomy and physiology of the visual system (3rd ed.). Elsevier. p. 47.