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Revision of filtration surgery
Archives of Ophthalmology (Chicago, Ill. : 1960)
|September 1, 1977
Summary
Revision surgery for malfunctioning filtering blebs in glaucoma patients showed success, particularly for underfiltering blebs. This study evaluated outcomes for various bleb revision procedures.
Area of Science:
- Ophthalmology
- Glaucoma Surgery
- Ophthalmic Procedures
Background:
- Filtering blebs are crucial for glaucoma management.
- Malfunctioning blebs can lead to suboptimal intraocular pressure control.
- Revision procedures aim to restore bleb function and efficacy.
Purpose of the Study:
- To evaluate the success rates of revision procedures for malfunctioning filtering blebs.
- To analyze outcomes based on the type of bleb dysfunction (underfiltering, overfiltering, unsatisfactory).
Main Methods:
- Retrospective review of 41 revision procedures in 37 eyes.
- Categorization of procedures based on bleb status: underfiltering, overfiltering, or unsatisfactory.
- Assessment of success based on procedural outcomes.
Main Results:
- Revision was performed on 32 underfiltering, 7 overfiltering, and 2 unsatisfactory blebs.
- Success rates were 75% (24/32) for underfiltering blebs.
- Success rates were 57% (4/7) for overfiltering blebs and 50% (1/2) for unsatisfactory blebs.
Conclusions:
- Filtering bleb revision surgery is a viable option for managing glaucoma.
- Underfiltering blebs demonstrate the highest success rate following revision.
- Further investigation may refine techniques for overfiltering and unsatisfactory blebs.