Dislocation of Binkhorst four-loop lens implant.

A consecutive series of 1,093 Binkhorst four-loop lens implantations was used to examine the problem of dislocation of implants used in intracapsular cataract extractions; emphasis of the study was on the need for suture fixation. Transiridectomy suture fixation was used in 497 procedures, no suture was used in 403 procedures, and a simple iris suture technique was used in 193 procedures. Although the transiridectomy suture fixation procedure had the lowest percentage of dislocations, the iris suture technique is considered safer. Suture fixation is recommended for Binkhorst four-loop implants used in intracapsular cataract extractions.