Zeitschrift für klinische und experimentelle Ophthalmologie
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The Outcome of Trabeculectomy Surgery among Patients at University of Gondar Tertiary Eye Care and Training Center, Northwest Ethiopia

Dereje Hayilu Anbesse, Fisseha Admasu Ayele, Kbrom Legesse Gebresellasie

Objective: The aim of this study was to assess outcome of Trabeculectomy surgery in terms of preservation of intraocular pressure, visual acuity and optic nerve head defect among patient undergoing trabeculectomy surgery at university of Gondar tertiary eye care and training center.

Methods: Hospital based cross sectional study was conducted from January to February 2017. A total of 69 consecutive ‘modern’ augmented and non-augmented ‘safe-technique’ trabeculectomies performed over a 2-year period (2012-2014) were assessed. Patients’ data from the charts were extracted and analyzed by SPSS version 20. Descriptive statistics were done to summarize the data. Paired samples t-test was performed to compare the correspondent preoperative and postoperative IOP, VA and CDR. P-value<0.05% was considered as statistically significant.

Results: A total of 69 eyes of 63 patients having post-operative follow up of six months were included in the study. The mean age at the presentation was 59.12 ± 12.64 years. On the last day before surgery, mean snellen VA was 0.28 (± 0.23) and it was changed to 0.24 (± 0.20) p=0.38, mean IOP was 31.87 mmHg (± 10.08) and it was reduced to 18.45 mmHg (± 6.12) p=0.001, mean CDR was 0.84 mm (± 0.13) and was changed to 0.85 mm (± 0.12), p=0.009 at six months after surgery. Complete success and failure of trabeculectomy was 52 (75.4%) and 8 (11.6%), respectively.

Conclusion: Based on IOP, the success rate of trabeculectomy was 75.4%. The mean preoperative VA was dropped by one line at six month after surgery and there was significant reduction of IOP from its base line.