title: Ultrasound biomicroscopy in traumatic aniridia 2 years after phacoemulsification.
abstract: A 45-year-old man with retinitis pigmentosa experienced total aniridia in the left eye due to direct blunt trauma 2 years after uneventful bilateral phacoemulsification via a 3.5 mm clear corneal incision. Ultrasound biomicroscopy (UBM) of the left eye revealed no missing or stretched zonular fibers extending from the ciliary body to the anterior capsule, a few iris root remnants, a normal ciliary body, an in-the-bag acrylic intraocular lens, and Descemet's membrane dehiscence at the corneal tunnel through which the iris extruded. The eye recovered 20/25 visual acuity after 1 week. Transient hyphema and a rise in intraocular pressure were recorded. This is the first report of traumatic aniridia 2 years after phacoemulsification with UBM evidence of undamaged zonular apparatus. A UBM examination may be clinically helpful, especially when blood prevents accurate slitlamp examination of the anterior segment.
authors.affiliation: Department of Neurosciences-Ophthalmology, University of Padua, Padua, Italy. daniele.doro@unipd.it
authors.forename: Daniele
authors.initials: D
authors.lastname: Doro
authors.forename: Velika
authors.initials: V
authors.lastname: Deligianni
mesh_terms: D000869:Anterior Eye Segment / Q000000981:diagnostic imaging; D003886:Descemet Membrane / Q000000981:diagnostic imaging / Q000293:injuries; D005131:Eye Injuries / Q000000981:diagnostic imaging*; D006801:Humans; D007498:Iris / Q000000981:diagnostic imaging* / Q000293:injuries*; D019654:Lens Implantation, Intraocular; D008297:Male; D033401:Microscopy, Acoustic; D008875:Middle Aged; D018918:Phacoemulsification; D019591:Pseudophakia / Q000000981:diagnostic imaging*; D013529:Surgical Wound Dehiscence / Q000000981:diagnostic imaging; D014792:Visual Acuity; D014949:Wounds, Nonpenetrating / Q000000981:diagnostic imaging*