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Abstract #18305 Published in IGR 3-3
Otago glaucoma surgery outcome study: long-term follow-up of cases of primary glaucoma with additional risk factors drained by molteno implants
Molteno ACB; Bevin TH; Herbison P; Houliston MJOphthalmology 2001; 108: 2193-2200
OBJECTIVE: This study was undertaken to provide data on the long-term results of cases of primary open-angle glaucoma with additional risk factors drained by Molteno implants in the province of Otago, New Zealand. DESIGN: Prospective, noncomparative case series PARTICIPANTS: One hundred and thirty eyes of 103 patients drained by Molteno implants as the first surgery between 1984 and 1999. INTERVENTION: Insertion of a Molteno implant (Ethicon Inc., Johnson & Johnson, Somerville, NJ) using the Vicryl-tie technique. MAIN OUTCOME MEASURES: Intraocular pressure (IOP), visual acuity, visual field. RESULTS: Insertion of a Molteno implant controlled the IOP at 21 mmHg or less with a probability of 1.0 (95% confidence interval (CI), 0.90, 1.0) at up to seven or more years after surgery. The mean preoperative visual acuity of 20/160 improved to 20/50 after operation and then declined to 20/55 at five years and 20/80 after ten years. The probability of retaining useful vision (visual acuity, >20/400; visual field, >5° radius) was 0.86 (95% CI, 0.77, 0.94) and 0.78 (95% CI, 0.67, 0.89) at five and seven or more years, respectively, after surgery. CONCLUSIONS: The insertion of Molteno implants using the Vicryl-tie technique in this series of 130 cases of primary open-angle glaucoma with additional risk factors controlled the IOP in all cases.
Dr A.C. Molteno, Department of Ophthalmology, University of Otago Medical School, Dunedin, New Zealand
Classification:
12.8.2 With tube implant or other drainage devices (Part of: 12 Surgical treatment > 12.8 Filtering surgery)
