A clear view of the ciliary zonule, or zonule of Zinn, is an uncommon sight at the slit lamp. Being transparent, poorly preserved post-mortem and resistant to absorbing histological stains, it wasn’t until the end of the 19th century that consensus on its anatomy was achieved. A recent comprehensive review by Bassnett (2021) summarises the important anatomical and physiological details of the zonule1. Here, we present clinical images of two uncommon conditions that highlight zonule insertion into the crystalline lens.
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