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..