A 25-year-old woman developed pupillary block glaucoma in the right eye after implantation of an angle-supported phakic intraocular lens despite a preexisting moderate-sized iridectomy. Ultrasound biomicroscopy (UBM) showed ophthalmic viscosurgical device retention in the posterior chamber and a full-thickness, patent-appearing iridectomy at 12 o'clock. The intraocular pressure gradually decreased to normal after a neodymium:YAG laser iridotomy was performed midperipherally at 9 o'clock. To our knowledge, this is the first report of UBM findings of this complication.
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