Solitary Free-Floating Iris Cyst Associated With Bilateral Pigment Dispersion Syndrome: Report of a Case.

摘要: CASE REPORT A 27-year-old white man with a 5-year history of pigment dispersion syndrome presented for evaluation. His past ocular was significant bilateral intraocular pressure elevation that had required -lowering medication (beta-blocker-prostaglandin analogue fixed combination). On ophthalmic examination, the visual acuity 20/20 without correction in both eyes. Anterior chamber slit-lamp examination revealed pigmented round mass modest transillumination at 6-o'clock position right eye. When asked, patient reported he first noticed shadow his eye during childhood when flexing neck and keeping face-down few seconds. During head-flexing test, freely floated anterior chamber. extended neck, could be seen front pupil. After moments, would slowly fall to iridocorneal angle position. Ultrasound biomicroscopy anterior-segment optical coherence tomography confirmed lesion cyst internal reflectivity. Specular microscopy examinations, performed exclude cyst-induced corneal endothelium compromise, cell-density ~3000 cells/mm Gonioscopy showed an open trabecular pigmentation funduscopy cup-to-disc ratio 0.5 bilaterally. Visual fields tests were within normal limits. CONCLUSIONS The etiology free-floating iris cysts is unclear, but it generally agreed these masses are usually dislodged epithelial cysts. This report unilateral associated syndrome.