Objective: To describe the 3-year outcomes of patients who underwent ab interno trabeculectomy revision with a translimbal sclerostomy spatula augmented with 5-flourouracil.
Design: Retrospective cohort study.
Participants: In this single-centre study, inclusion criteria included patients who were 18 years of age or older with advanced glaucoma who had undergone ab interno trabeculectomy revision with 5-flourouracil due to subconjunctival fibrosis and above-target intraocular pressure (IOP). Patients were required to have a minimum follow-up of 3 years.
Methods: The primary outcome measure was IOP. Secondary outcome measures included number of topical IOP-lowering medications, best-corrected distance visual acuity, visual field mean deviation, and postoperative complications.
Results: Forty-one eyes of 41 patients met the criteria for inclusion. Survival analysis demonstrated success defined by criterion A (IOP <15 mm Hg and >20% reduction) in 44% of eyes without medication (complete success) and 71% of eyes with or without medication (qualified success) at 3-year follow-up. Complete and qualified successes defined by criterion B (IOP <12 mm Hg and >20% reduction) were achieved by 31% and 44% of eyes, respectively. Early complications included transient hypotony in 26 eyes (63%) and transient hyphema in 3 eyes (7.3%). No persistent complications were reported within the 3-year study period.
Conclusion: Ab interno trabeculectomy revision can be an effective technique for achieving a low target IOP in patients with advanced glaucoma in up to 3-year follow-up.
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