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Glaucoma filtering bleb dysesthesia.

D L Budenz1, K Hoffman, A Zacchei

  • 1Bascom Palmer Eye Institute, Department of Ophthalmology, University of Miami School of Medicine, Miami, Florida 33136, USA. dbudenz@med.miami.edu

American Journal of Ophthalmology
|May 5, 2001
PubMed
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Glaucoma filtering blebs cause discomfort. Younger age, superonasal bleb location, poor eyelid coverage, and bubble formation are linked to increased bleb dysesthesia.

Area of Science:

  • Ophthalmology
  • Glaucoma Surgery Outcomes

Background:

  • Glaucoma filtering blebs are a common surgical outcome for managing intraocular pressure.
  • Dysesthesia, or discomfort, associated with these blebs can impact patient quality of life.

Purpose of the Study:

  • To investigate the prevalence of dysesthesia in patients with glaucoma filtering blebs.
  • To identify risk factors associated with the development of bleb-related dysesthesia.

Main Methods:

  • A prospective, cross-sectional study involving 97 patients with unilateral glaucoma filtering blebs post-trabeculectomy.
  • Patient-reported outcomes using a questionnaire assessed symptoms of ocular pain, discomfort, burning, foreign body sensation, and tearing.
  • Statistical analysis compared dysesthesia scores and evaluated risk factors including patient demographics, surgical details, and bleb characteristics.

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Main Results:

  • Patients with glaucoma filtering blebs reported significantly higher dysesthesia scores compared to their unaffected eyes (P = .001).
  • Key risk factors identified for dysesthesia included younger age (P = .005), superonasal bleb location (P = .036), presence of bubbles (P = .028), and inadequate eyelid coverage (P = .013).
  • A steeper bleb angle, indicative of bleb height, correlated with increased bubble formation (P = .001).

Conclusions:

  • Glaucoma filtering blebs are associated with a higher incidence of dysesthesia.
  • Younger patients, superonasal bleb placement, poor eyelid coverage, and intra-bleb bubble formation are significant risk factors for developing dysesthesia after glaucoma surgery.