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Surgery & Complications
Overhanging Bleb

  • May result from the effect of continuous lid movement.
  • More likely associated with an unguarded "full-thickness" filtration procedure.
  • Clinical features:
    • Symptoms: may be asymptomatic or report symptoms of foreign body sensation, tearing, decreased vision, or a cosmetic problem.
    • Signs:
      • Large bleb gradually extends downward and covers the peripheral cornea
      • May result in adjacent cornea drying and dellen formation
  • Management:
    • Artificial tears.
    • Surgical excision of the corneal portion of the bleb may be required in an advance case.

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