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Cataract surgery: interim results and complications of a randomised controlled trial. Oxford Cataract Treatment and Evaluation Team (OCTET).

Abstract

A randomised controlled trial in progress for more than five years, with no loss to follow-up (except death), assessed 333 eyes treated by three methods of cataract surgery. They were (A) intracapsular extraction and contact lens usage, (B) intracapsular extraction and implantation of an iris supported lens (Federov I), and (C) extracapsular extraction and implantation of an iridocapsular lens (Binkhorst 2-loop). The purpose of the paper is to report interim visual results, complications, and corneal endothelial cell loss. More eyes in groups A (contact lens) and C (extracapsular + implant) achieved better visual acuity than in group B (intracapsular + Federov lens), which also had more postoperative complications. Both implant groups lost more endothelial cells than the non-implant group, which did not differ significantly from group B before one year.

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