The Effectiveness of Conventional Trabeculectomy in Controlling Intraocular Pressure in Our Population

Abstract

Purpose: To evaluate the effectiveness of conventional trabeculectomy in controlling intraocular pressure in patients with POAG in our population.

Material and Methods: This case control study was carried out in department of ophthalmology, Liaquat National Hospital Karachi from 21st March 2005 to 20th March 2006. 50 patients included in this study were diagnosed case of POAG, who underwent conventional trabeculectomy. Mean follow up was one year. Outcome measures were intraocular pressure and visual acuity.

Results: The study included 50 patients with POAG who undergone conventional trabeculectomy. Age range of patients was 41 – 74 with the mean 56.8 years. Visual acuity showed no statistically significant difference between pre and post-operative periods. Pre-op intra ocular pressure was 20 – 55 mmHg and it was reduced to a mean of 5-22 mmHg post operatively. The mean decline in IOP after surgery was 15.78 mmHg. Perimetry and C/D ratio showed no significant change after surgery.

Conclusion: Results show that in most of the cases visual acuity is maintained and IOP is controlled in the short term period of one year. So conventional trabeculectomy can be effective in controlling IOP in our population.