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Where Do Zonules Attach to Lens?

James H. Sterling • • 6 min read
Where Do Zonules Attach to Lens?

The zonules attach to the lens capsule 2 mm anterior and 1 mm posterior to the equator, and arise of the ciliary epithelium

ciliary epithelium
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.
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from the pars plana region as well as from the valleys between the ciliary processes in the pars plicata.

What are the zonular fibers attach to?

The zonular fibers anchor the the equator of the lens and adjacent anterior and posterior surface of the lens to the ciliary body and and ciliary part of the retina. The ciliary epithelial cells of the eye probably synthesize portions of the zonules.

What is attached to the lens by the ciliary zonule?

The ciliary body is attached to the lens by connective tissue called the zonular fibers (fibers of Zinn). Relaxation of the ciliary muscle puts tension on these fibers and changes the shape of the lens in order to focus light on the retina.

James H. Sterling
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James H. Sterling

James Sterling reports on renewable energy developments, climate policy, ecological conservation, and green tech innovations around the globe.