Doro Daniele, Deligianni Velika
Department of Neurosciences-Ophthalmology, University of Padua, Padua, Italy.
J Cataract Refract Surg. 2006 Oct;32(10):1753-5. doi: 10.1016/j.jcrs.2006.05.017.
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.
一名患有视网膜色素变性的45岁男性，在经3.5毫米透明角膜切口行双眼白内障超声乳化吸除术过程顺利两年后，因左眼遭受直接钝挫伤而出现完全性无虹膜。左眼的超声生物显微镜检查（UBM）显示，从睫状体到前囊膜没有缺失或拉伸的悬韧带纤维，有一些虹膜根部残余，睫状体正常，人工晶状体位于囊袋内，虹膜通过角膜隧道处的Descemet膜裂开。1周后，该眼视力恢复到20/25。记录到有短暂性前房积血和眼压升高。这是第一例白内障超声乳化吸除术后两年发生外伤性无虹膜且UBM显示悬韧带装置未受损的报告。UBM检查在临床上可能会有帮助，尤其是当出血妨碍对眼前节进行准确的裂隙灯检查时。
