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Excisional bleb revision to correct overfiltration or leakage
J S Myers1, C B Yang, L W Herndon
1Wills Eye Hospital, Philadelphia, Pennsylvania 19107, USA.
Journal of Glaucoma
|April 27, 2000
Summary
Excisional bleb revision effectively treats hypotony or leakage after glaucoma surgery when conservative methods fail. This procedure helps restore intraocular pressure control, often with medication assistance.
Area of Science:
- Ophthalmology
- Glaucoma Surgery
- Surgical Techniques
Background:
- Filtering blebs are common after glaucoma surgery.
- Hypotony and leakage are potential complications that can compromise visual outcomes.
- Conservative management options may not always be successful.
Purpose of the Study:
- To evaluate the effectiveness of excisional revision of filtering blebs.
- To assess the procedure for treating hypotony (intraocular pressure < 5 mm Hg) or leakage.
- To determine outcomes when conservative measures have failed.
Main Methods:
- Retrospective review of 16 patients undergoing excisional bleb revision.
- Procedure involved excision of avascular blebs and conjunctival suturing.
- Follow-up period averaged 25 months.
Main Results:
- Average intraocular pressure increased from 3.8 to 11.9 mm Hg post-revision.
- 14 out of 16 patients achieved an intraocular pressure < 15 mm Hg.
- Visual acuity improved by at least two lines in nine patients.
Conclusions:
- Excisional bleb revision is an effective treatment for hypotony or leakage.
- The procedure offers a viable solution when other methods fail.
- Medications are often necessary for sustained intraocular pressure control.