Patient: 22 years of age, female, BCVA 1.0, IOP 16 mmHg.
Main Complaint: no
Ocular Medical History: by chance observation of an unpigmented iridal lesion in OS
General Medical History: empty
Findings:
1) Slit Lamp: solitary iris elevation in 2h position, no pigmentation.
2) Ultrasound biomicroscopy: cystic lesion in area of iris root/ ciliary process touching the lens (1.6 mm x 2.9 mm)
Discussion:
Ultrasound biomicroscopy is a valuable technique in diagnosing this condition. It was reported (1) that among a general physical check-up population, subjects with shallow anterior chambers (N=727), the prevalence of primary iris and/or ciliary body cysts in eyes with shallow anterior chamber was about 30%, judged by ultrasound biomicroscope (UBM). A significant higher proportion of the cysts were located at the iridociliary sulcus (80%).
Literature:
(1) Wang, BH; Yao, YF. Effect of primary iris and ciliary body cyst on anterior chamber angle in patients with shallow anterior chamber.J Zhejiang Univ Sci B, 2012 vol. 13(9) pp. 723-30
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