The efficacy of Ahmed glaucoma valve drainage devices in cases of adult refractory glaucoma in Indian eyes

Abstract

Aim:To evaluate the efficacy of Ahmed glaucoma valve (AGV) drainage devices in cases of adult refractory glaucoma in Indian eyes.Settings and Design:Retrospective interventional case series study.Materials and Methods:Fifty two eyes of 32 patients of refractory glaucoma in the age group of 35 to 60 years who underwent AGV implantation with or without concomitant procedures from January 2003 to Jan 2007 were studied. Of these, 46 eyes (88%) had undergone filtering surgery earlier whereas remaining eyes underwent primary AGV implantation following failure of maximal medical therapy. The follow up ranged between 12 months to 48 monthsResults:Eighteen eyes (35%) had undergone phacoemulsification with AGV implantation, penetrating keratoplasty (PK) with AGV and intraocular lens (IOL) implantation in 13 eyes (25%), AGV over preexisting IOL in eight eyes (15%). AGV implantation alone was done in six (11%) eyes. Anterior chamber (AC) reconstruction with secondary IOL and AGV was performed in the remaining eyes. The mean intra ocular pressure (IOP) decreased from 36.3 ± 15.7 mm Hg to 19.6 ± 9.2 mm Hg. Complete success as per criteria was achieved in 46 eyes (88%). None of the eyes had failure to maintain IOP control following AGV.Conclusion:The AGV resulted in effective and sustained control of IOP in cases of adult refractory glaucoma in intermediate follow up.

Surgical outcomes of a new affordable non-valved glaucoma drainage device and Ahmed glaucoma valve: comparison in the first year

“…Das et al 6 reported approximately 85% success rate at 1 year and 88% was reported by Parihar et al 7 which are marginally higher than the success rate of AGV in our study (80.5%). This could be attributed to the FP8 models that were used in a small proportion of eyes in our study which fared worse than the FP7 models at the end of 1 year.…”

Short term outcome of Ahmed glaucoma valve implantation in management of refractory glaucoma in a tertiary hospital in Oman

“…Evidence suggests that the use of valves have improved the short term, intermediate, and long term surgical outcomes. [71023] Our results also confirm that AGV implant surgery provided a level of success in the Omani population that is comparable to many other studies.…”

“…This matched with the results of other studies, in which researchers noted 88% and 89% of operated eyes with reduced intraocular pressure in the intermediate follow up periods. [720] In contrast, Wu et al . had reported that 59% of eyes operated for implanting AGV having ocular hypertension after six months, which were controlled by adding topical medication.…”

Management of bilateral idiopathic healed sclerokeratouveitis with ciliary and intercalary staphyloma with complicated cataract and secondary glaucoma

“…[1] and agree with their conclusions and would like to share the course of a uveitic glaucoma with intercalary staphyloma which was managed well with phacoaspiration, posterior chamber intraocular lens (PCIOL), and Ahmed glaucoma valve (AGV) implantation. Uveitic glaucoma is challenging due to the early onset and the numerous mechanisms of pathogenesis including steroid-induced intraocular pressure (IOP) elevation.…”