- 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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