The zonule of Zinn is a ligament in the eye that attaches to the ciliary body and helps hold the lens in place. Synonyms for the zonule of Zinn include suspensory ligament of the lens, ciliary zonule, and zonular fibers. Other terms used to describe this structure include the zonule fibers, zonula ciliaris, and zonule of Zinn and Haller. The zonule of Zinn plays a crucial role in regulating the shape of the lens and focusing light onto the retina. Any disruption in the function of this ligament can lead to vision problems, such as cataracts or other conditions that affect the clarity of the lens.