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OBJECTIVE: To study the effectiveness of neodymium:YAG (Nd:YAG) laser transconjunctival revision of late-failing filtering blebs. DESIGN: Retrospective, noncomparative case series. PARTICIPANTS: Thirty consecutive patients from a glaucoma referral practice at the Ohio State University Department of Ophthalmology. INTERVENTION: Transconjunctival Nd:YAG laser revision of blebs diagnosed as failing secondary to episcleral fibrosis. MAIN OUTCOME MEASURE: Reduction in intraocular pressure (IOP) and survival of bleb. RESULTS: Reduction in IOP was attained in 24 (80%) of 30 patients with a mean prelaser IOP of 21.21 mmHg and a mean one-week postlaser IOP of 13.97 mmHg (p < 0.0001). These results were maintained at the one-, three-, and 12-month follow-up visits with mean IOPs of 16.31 mmHg (p=0.0008), 14.81 mmHg (p < 0.0001), and 15.25 mmHg (p=0.0003), respectively. Two-year data were available on a small number of patients (four) with a mean of 15.25 mmHg (p=0.0085). Mean time interval between trabeculectomy and laser revision was 31 months. CONCLUSION: Late-failing filtering blebs are often amenable to Nd:YAG transconjunctival revision.
Dr. P.A. Weber, Department of Ophthalmology, Ohio State University, Columbus, OH 43210; USA
12.8.11 Complications, endophthalmitis (Part of: 12 Surgical treatment > 12.8 Filtering surgery)