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Laser-assisted deep sclerectomy
Carlos Vergés1, Elvira Llevat, Javier Bardavio
1Department of Ophthalmology, Institut Universitari Dexeus, Barcelona, Spain. cverges@cverges.com
Journal of Cataract and Refractive Surgery
|April 30, 2002
Summary
Deep sclerectomy with the erbium:YAG (Er:YAG) laser effectively lowers intraocular pressure in open-angle glaucoma (OAG) patients. This safe procedure shows a high success rate, with significant IOP reduction sustained up to 15 months.
Area of Science:
- Ophthalmology
- Glaucoma Surgery
- Laser Technology
Background:
- Open-angle glaucoma (OAG) is a leading cause of irreversible blindness.
- Current treatments aim to reduce intraocular pressure (IOP) to prevent optic nerve damage.
- Surgical interventions are considered when medical management is insufficient.
Purpose of the Study:
- To evaluate the clinical effectiveness and safety of deep sclerectomy using the erbium:YAG (Er:YAG) laser.
- To assess the impact of Er:YAG laser deep sclerectomy on intraocular pressure (IOP) in OAG patients.
Main Methods:
- A prospective, nonrandomized clinical study involving 46 eyes with OAG.
- Deep sclerectomy performed using an Er:YAG laser after mitomycin-C administration.
- Surgical technique involved creating a scleral flap, ablating deep sclera, removing Schlemm's canal, and dissecting to Descemet's membrane.
- Postoperative follow-up for up to 15 months.
Main Results:
- Mean preoperative IOP of 28.3 mmHg decreased significantly to 15.3 mmHg at 15 months (P <.001).
- Success rate (IOP ≤18 mmHg without medication) was 84.78% at 15 months.
- Complication rates were lower than reported for trabeculectomy; one case of cystoid macular edema occurred.
Conclusions:
- Deep sclerectomy utilizing the Er:YAG laser is a safe and effective treatment for OAG.
- The procedure leads to significant and sustained IOP reduction.
- Further research is warranted to elucidate the IOP-lowering mechanisms.