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Updated: Aug 5, 2026

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Published on: May 5, 2022
Posttraumatic iris implantation cyst with sediment containing occult glass intraocular foreign bodies
Mira Knežić Zagorec1, Biljana Kuzmanović Elabjer1, Damir Bosnar1
1Department of Ophthalmology, Reference Center of the Ministry of Health of the Republic of Croatia for Pediatric Ophthalmology and Strabismus, Reference Center of the Ministry of Health of the Republic of Croatia for Inherited Retinal Dystrophies, Reference Center of the Ministry of Health of the Republic of Croatia for Standardized Echography in Ophthalmology, University Hospital "Sveti Duh", Sveti Duh 64, 10000 Zagreb, Croatia.
Abstract:
We report a unique case of a posttraumatic iris implantation cyst with sediment containing occult glass intraocular foreign bodies detected 50 years after penetrating ocular trauma. Ultrasound biomicroscopy demonstrated foreign-body echoes with reverberation artifacts within the cyst fluid sediment, which were confirmed intraoperatively as glass particles. Cytologic analysis of the aspirate revealed epithelial cells, lymphocytes, and macrophages, while histopathologic examination of the cyst wall demonstrated nonkeratinized stratified squamous epithelium. This previously unreported presentation highlights that occult glass intraocular foreign bodies may remain clinically silent for decades and should be considered in the differential diagnosis of posttraumatic iris cysts containing sediment.
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