title: Broken nylon iris fixation sutures.
abstract: Broken nylon iris sutures, used to fixate the Worst suture lens, occurred in 41 of a series of 215 eyes, a remarkably high frequency. The estimated average time to break was 27.8 months. Over three fourths of the borken sutures were discovered incidentally on a return visit. Complications related to the broken suture occurred in 21 eyes. The characteristic complication was corneal epithelial edema caused by intermittent touch of the endothelium by the broken suture; spontaneous lens dislocation was infrequent. Light and scanning electron microscopy revealed that biodegradation caused the suture break. Broken iris  sutures can be avoided by fixation of the lens with a nonbiodegradable suture.
mesh_terms: D001673:Biodegradation, Environmental; D002387:Cataract Extraction; D006801:Humans; D007498:Iris; D007910:Lenses, Intraocular; D009757:Nylons; D011183:Postoperative Complications; D013537:Sutures
chemical_list: D009757:Nylons