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Factors Associated with Conjunctival Erosions after Ahmed Glaucoma Valve Implantation

Di Zhou1, Xiao Yi Zhou1, Alma Michelle Mas-Ramirez1

  • 1Department of Ophthalmology, School of Medicine, Kresge Eye Institute, Wayne State University, Detroit, MI, USA.

Journal of Ophthalmic & Vision Research
|November 28, 2018
PubMed

Insights

Conjunctival erosions occurred in 7.52% of patients after Ahmed valve implantation. Risk factors included aphakia, uveitic glaucoma, and prolonged topical steroid use, highlighting areas for improved surgical outcomes.

Area of Science:

  • Ophthalmology
  • Glaucoma Surgery
  • Medical Device Implantation

Background:

  • Ahmed valve implantation is a common procedure for glaucoma management.
  • Conjunctival erosion is a potential complication following glaucoma drainage device implantation.
  • Identifying risk factors is crucial for preventing and managing this complication.

Purpose of the Study:

  • To determine the frequency of conjunctival erosions after Ahmed valve implantation.
  • To identify risk factors associated with conjunctival erosions in these patients.

Main Methods:

  • Retrospective case-control study of 306 eyes (277 patients) undergoing Ahmed valve implantation.
  • Analysis of conjunctival erosion rates and associated factors using univariate, bivariate, and Cox-proportional hazard models.

Main Results:

  • The overall rate of conjunctival erosions was 7.52% (23 of 306 eyes).
  • Aphakia, uveitic glaucoma, and longer post-operative topical steroid use were significantly associated with increased erosion risk.
  • No erosions were observed with the modified scleral tunnel technique.

Conclusions:

  • The conjunctival erosion rate following Ahmed valve implantation is 7.52%.
  • Aphakia, uveitic glaucoma, and extended topical steroid use are significant risk factors for conjunctival erosions.
  • The modified scleral tunnel method may reduce the risk of erosion.
Abstract

Keywords:
Ahmed ValveConjunctival ErosionGlaucoma

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