Abstract

Purpose:Evaluate outcomes of bleb needling with High dose(40µg)subconjunctival MMC after failing/failed filtering proceduresMethods:Prospective,interventional study.Pts who had raised IOP following filtering procedures,flat bleb,encapsulation, &/or requiring AGM were included.Outcome measures were AGM,IOP,BCVA,Success rateResults:52 eyes(52 pts) were included.Mean time to needling was 6.77 months&mean glaucoma duration was 2.92 years.IOP decreased from mean(SD)25.56(6.78)mmHg to13.65(4.58),15.13(3.66),15.42(4.23),14.74(4.28) at1,3,6,12months(p < .0001)& AGM 2.02(0.96) to0.17(0.47), 0.48(0.73), 0.85(0.94), 1.10(0.98)at1,3,6,12 months(p < .0001).Complete success(IOP >5&≤21 mmHg without AGM)95.8,87.5&74.4% at3,6,12months.Overall success was 98.1,94.2&88.3% at3,6,12months.No significant complication was noted.3 patients required GDD implantationConclusion: Bleb needling with high-dose MMC appears to be a viable option for salvaging failing/failed filtration without compromising safety