# Massive iris cyst in an adult female

## TL;DR

A 77-year-old woman developed a large iris cyst in her eye years after cataract surgery, leading to severe vision loss and requiring surgery.

## Contribution

This case presents a rare, massive iris cyst in an adult years after cataract surgery, with unique clinical features.

## Key findings

- The cyst occupied nearly the entire anterior chamber and caused complete visual axis obstruction.
- The lesion was diagnosed as a benign iris stromal cyst after surgical excision and pathology analysis.
- Post-operative complications included corneal edema and elevated intraocular pressure.

## Abstract

To report an interesting case of a massive iris cyst encompassing nearly the entire anterior chamber in an adult female years after cataract surgery.

A 77-year-old female with a history of bilateral cataract surgery presented with a large ciliary body mass in the left eye. The lesion was first incidentally noted one year prior to presentation and continued to grow and ultimately caused complete obstruction of the visual axis. Per report, the patient received two YAG laser treatments with subsequent recrudescence. Exam on second opinion consultation with our service was significant for a cystic mass involving nearly the entire left anterior chamber with total occlusion of the pupil. Patient underwent surgical excision with ethanol irrigation and partial iridectomy. The pathology report revealed benign stratified non-keratinizing squamous epithelium consistent with benign epithelial cyst and favoring iris stromal cyst. Post-operative course was complicated by corneal edema and elevated intraocular pressure.

We describe a case of iris implantation cyst that is unique in several aspects, including the size of the mass encompassing nearly the entire anterior chamber, its presentation in an adult years after cataract surgery, rapid growth across one year, and the severe degree of visual compromise.