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Long-term results of Ahmed glaucoma valve implantation for uveitic glaucoma

Thekla G Papadaki1, Ioannis P Zacharopoulos, Louis R Pasquale

  • 1Massachusetts Eye Research and Surgery Institute, Ocular Immunology and Uveitis Foundation, Harvard Medical School Boston, Massachusetts, USA. theklapap@med.uoc.gr

American Journal of Ophthalmology
|May 12, 2007
PubMed

Insights

Ahmed glaucoma valve implantation offers moderate success for uveitic glaucoma, with long-term outcomes improved by medication. Corneal complications are the most frequent serious issue.

Area of Science:

  • Ophthalmology
  • Glaucoma Research
  • Uveitis Management

Background:

  • Uveitic glaucoma presents unique challenges in intraocular pressure (IOP) management.
  • Ahmed glaucoma valve implantation is a surgical option for refractory cases.

Purpose of the Study:

  • To evaluate the long-term efficacy and safety of Ahmed glaucoma valve implantation in patients with uveitic glaucoma.

Main Methods:

  • Retrospective chart review of 60 patients with uveitic glaucoma undergoing Ahmed valve implantation.
  • Success defined by IOP targets (5-21 mm Hg, 25% reduction) and absence of serious complications.
  • Follow-up averaged 30 months, with specific analysis at one and four years.

Main Results:

  • One-year success rates were 77% (IOP control) and 57% (qualified success).
  • Four-year success rates decreased to 50% (IOP control) and 39% (qualified success).
  • Corneal complications were the most common serious adverse events, particularly in patients with pre-existing corneal disease.

Conclusions:

  • Ahmed valve implantation is a safe and moderately effective procedure for uveitic glaucoma.
  • Sustained IOP control often requires adjunctive glaucoma medications.
  • Careful patient selection is advised due to the risk of corneal complications.
Abstract

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