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Deep sclerectomy with trabeculotomy ab externo: one-stage procedure (DS 1)
Ophthalmic Surgery
|June 1, 1989
Summary
This study introduces a new glaucoma surgery for narrow-angle eyes with high intraocular pressure (IOP). The full-thickness filtering procedure effectively lowered IOP in 80% of patients within 12 months.
Area of Science:
- Ophthalmology
- Surgical Innovation
- Glaucoma Research
Background:
- Narrow-angle glaucoma frequently presents with high intraocular pressure (IOP) resistant to initial treatments like peripheral iridectomy.
- Maintaining anterior chamber depth is crucial during surgical interventions for glaucoma.
Purpose of the Study:
- To evaluate a novel full-thickness filtering procedure for narrow-angle glaucoma.
- To assess the efficacy and safety of this technique in reducing intraocular pressure (IOP).
Main Methods:
- The procedure involved removing a scleral block containing Schlemm's canal under conjunctival and scleral flaps.
- Trabecular puncture was performed after flap closure.
- The study included 20 eyes from 15 patients with narrow-angle glaucoma and high IOP.
Main Results:
- Mean preoperative IOP was 34.8 mmHg, reducing to 14.9 mmHg postoperatively.
- 80% of eyes (16 out of 20) achieved a final IOP below 21 mmHg without oral medication after at least 12 months.
- The primary complication was minor, transient bleeding from the trabeculum.
Conclusions:
- The new full-thickness filtering procedure is effective in lowering IOP for narrow-angle glaucoma patients.
- The technique demonstrates a favorable safety profile with minimal complications.
- This surgical approach offers a viable option for managing refractory narrow-angle glaucoma.