The zonules can be readily visualized in the dilated pupil of this patient with Marfan's syndrome (see Marfan's syndrome in this atlas). The Zonules (of Zinn) are a ring of fibrous strands, composed mainly of elastin microfibrils, that extend from the cilary body to the equator of the lens capsule and thus suspending the lens in place.
Ophthalmic Atlas Images by EyeRounds.org, The University of Iowa are licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License.
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