Two Years Observing Intraocular Pressure and Glaucoma Therapy after BilateralTrabeculectomy

Overview

Purpose:
Toevaluate the level of intraocular pressure (IOP) andglaucomatherapyduring two years after trabeculectomy (TE) with two releasable sutures (RS) onthe first and the second operated eye.Methods: In a retrospective study, preoperative and postoperative IOP and glaucoma therapy in 40 patients with open angle glaucoma, were evaluated. Patientsunderwent standardized TE with two RS on both eyes performed by the samesurgeon. The first (worse) eye was operated on an average of three years after thediagnosis of glaucoma, and after 8,2 ± 6,9 months the second (better) eye wasoperated on.Results: TE with RS significantly decreased the level of IOP (p < 0.0001) andtherapy (p < 0.0001) during a two year follow up period. There was no significantdifference in IOP (p = 0.226) and glaucoma therapy (p = 0.086) between the firstand the second operated eye. IOP was stabilised within 2 - 3 months after surgeryfor most patients, however glaucoma therapy was added for some to keep thetarget pressure. After one year IOP and therapy were stable for all patients.Conclusion: There is no difference between the firstorse and the second-betteroperated eye regarding IOP and glaucoma therapy during a two year period.

Key words:
bilateral trabeculectomy, glaucoma therapy, intraocular pressure,releasable sutures, the first and the second operated eye