Related Experiment Videos
Ab interno trabeculectomy: outcomes in exfoliation versus primary open-angle glaucoma
Jessica L M Ting1, Karim F Damji, Michael C Stiles
1Department of Ophthalmology, University of Alberta, Royal Alexandra Hospital, Edmonton, Alberta, Canada. jting@ualberta.ca
Journal of Cataract and Refractive Surgery
|February 11, 2012
Summary
Ab interno trabeculectomy effectively lowers intraocular pressure (IOP) in both exfoliation glaucoma and primary open-angle glaucoma (POAG). Combining this procedure with cataract surgery improves success rates, especially for exfoliation glaucoma patients.
Area of Science:
- Ophthalmology
- Glaucoma Research
- Surgical Innovation
Background:
- Glaucoma management requires effective IOP reduction.
- Exfoliation glaucoma and primary open-angle glaucoma (POAG) are common forms of glaucoma.
- Ab interno trabeculectomy offers a minimally invasive approach to IOP control.
Purpose of the Study:
- To compare the efficacy of ab interno trabeculectomy (Trabectome) alone versus combined with cataract surgery and intraocular lens (IOL) implantation.
- To evaluate outcomes in exfoliation glaucoma versus POAG.
- To assess intraocular pressure (IOP) reduction, medication use, complications, and secondary procedures.
Main Methods:
- Prospective nonrandomized cohort study conducted across multiple institutions.
- Patients underwent either Trabectome alone or combined Trabectome-IOL surgery.
- Outcomes measured included IOP, medication requirements, complications, need for secondary procedures, and success rates.
Main Results:
- Trabectome alone resulted in greater IOP reduction and higher success rates in exfoliation glaucoma compared to POAG.
- Combined Trabectome-IOL surgery showed similar success rates for both glaucoma types.
- The combined procedure demonstrated lower secondary procedure rates and significant IOP reduction in both groups.
Conclusions:
- Ab interno trabeculectomy safely lowers IOP to the mid-teens.
- Exfoliation glaucoma patients experienced greater IOP reduction with Trabectome alone.
- Combining ab interno trabeculectomy with cataract surgery enhances success rates for glaucoma patients.
Related Concept Videos
01:27Open Angle Glaucoma: Treatment
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
01:25Glaucoma: Overview
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
01:28Angle Closure Glaucoma: Treatment
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...