ULTRASOUND BIOMICROSCOPIC FEATURES OF IRIS RETRACTION SYNDROME

BACKGROUND AND OBJECTIVES: To examine anatomic relationships of anteri or and posterior chamber structures in iris retraction syndrome using ultrasound biomicroscopy. PATIENTS AND METHODS: Four eyes of four pati ents with iris retraction syndrome were imaged using high-frequency hi gh-resolution, anterior segment ultrasound biomicroscopy. In two patie nts, scans were obtained before and after medical therapy. RESULTS: Th ree patients presented with iris retraction configuration and one with iris bombe. In the latter case, iris bombe converted to iris retracti on and back to iris bombe with the administration and later withdrawal of aqueous suppressants. Ciliochoroidal effusion was present in all e yes. CONCLUSIONS: Ciliochoroidal effusion is a constant feature of iri s retraction syndrome. The hypotony associated with this disorder may result in part from aqueous hyposecretion related to ciliary body deta chment. Ultrasound biomicroscopy is a useful aid in the diagnosis and follow-up of eyes with iris retraction syndrome.