A twenty-year follow-up study of trabeculectomy: Risk factors and outcomes

Abstract

Purpose: This study was undertaken to determine the performance of trabeculectomy surgery over a 20-year period and examine the associations between outcome and risk factors for trabeculectomy failure. Design: Retrospective cohort study. Participants: A total of 234 patients (330 procedures) who had undergone trabeculectomy surgery at Addenbrooke's Hospital, Cambridge, United Kingdom, between January 1988 and December 1990. Methods: Patients were identified through surgical logbooks (n = 521 procedures on 380 patients); after this, a case-note review was undertaken, which identified 234 patients (330 procedures) who had available case notes. Main Outcome Measures: Surgical success was define..