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Vascular changes over trabeculectomy blebs

P T Chew1, P G Watson, C K Chee

  • 1Department of Ophthalmology, Addenbrooke's Hospital, Cambridge, UK.

Eye (London, England)
|January 1, 1994
PubMed
Summary
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Low-dose fluorescein angiography revealed reduced blood flow and delayed vessel filling around the bleb site after successful trabeculectomy surgery. This finding offers insights into the vascular changes following glaucoma treatment.

Area of Science:

  • Ophthalmology
  • Glaucoma Surgery
  • Vascular Imaging

Background:

  • Trabeculectomy is a common surgical procedure for glaucoma.
  • Understanding the vascular dynamics post-surgery is crucial for assessing success and complications.

Purpose of the Study:

  • To investigate the vascular perfusion changes in the anterior segment after trabeculectomy using fluorescein angiography.
  • To correlate angiographic findings with the success of trabeculectomy.

Main Methods:

  • Low-dose anterior segment fluorescein angiography was performed on 10 eyes.
  • Angiography was conducted before and after trabeculectomy with a limbal-based conjunctival flap.

Main Results:

  • Successful trabeculectomies showed a distinct area of decreased capillary vascular perfusion over the bleb site.

Related Experiment Videos

  • Delayed filling of vessels running over the bleb site was observed post-surgery.

    • Conclusions:

    • Post-trabeculectomy angiographic findings indicate specific vascular changes associated with successful glaucoma surgery.
    • These vascular alterations, including reduced perfusion and delayed filling, are key indicators of surgical outcome.