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A novel use of amniotic membrane in the management of tube exposure following glaucoma tube shunt surgery
  1. G Ainsworth1,
  2. A Rotchford1,
  3. H S Dua2,
  4. A J King1
  1. 1Department of Ophthalmology, University of Nottingham, University Hospital, Queens Medical Centre, Derby Road, Nottingham NG7 2UH, UK
  2. 2Division of Ophthalmology and Visual Sciences, University of Nottingham, University Hospital, Queens Medical Centre, Derby Road, Nottingham NG7 2UH, UK
  1. Correspondence to: Anthony King Department of Ophthalmology, B Floor, Eye ENT Centre, Queens Medical Centre, Derby Road, Nottingham NG7 2UH, UK; anthony.king{at}qmc.nhs.uk

Abstract

Aim: To report a novel technique using amniotic membrane to cover exposed glaucoma tube shunts.

Methods: A consecutive series of three cases that underwent drainage tube shunt surgery with the Ahmed valve for intractable glaucoma. All three patients developed exposure of the tube secondary to necrosis of the overlying bovine pericardial patch and conjunctiva. Repair of the defect was carried out with a double layer of amniotic membrane, the inner one acting as a graft and the outer as a patch. Autologous serum was used to promote epithelial growth.

Results: Successful lasting closure of the conjunctival defect was achieved in all cases.

Conclusion: Erosion of the drainage tube following shunt surgery is a potentially serious problem. It can be successfully managed using a double layer of amniotic membrane.

  • amniotic membrane
  • glaucoma
  • tube shunt

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