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Surgery & Complications
Corneal graft failure in an eye with tube-cornea contact may necessitate tube shunt removal and corneal re-grafting.

  • Glaucoma tube implant surgeries (aqueous shunting procedures) have become an increasing popular alternative to conventional filtration surgery in patients with refractory glaucoma (previous failed glaucoma surgery or poor surgical prognosis).
  • Complications:
    • Early post-operative complications associated with tube shunt insertion include ocular hypotony, inflammation, bleeding, infection or blockage of the tube.
    • Late postoperative complications include corneal edema due to a persistent flat chamber from hypotony, corneal decompensation from tube-cornea touch, cataract, tube migration, scleral erosion, and diplopia.
  • Management:
    • Observation for bleeding, worsening hypotony, increasing IOP or inflammatory signs.
    • Medical treatment for inflammation or infection.
    • Tube repositioning or exchange.
    • Penetrating keratoplasty for decompensated cornea.

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