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Third-Generation Trabecular Micro-Bypass Implantation with Phacoemulsification for Glaucoma
Zachary Vest1,2, Nadia Alinaghizadeh3, Connor Prendergast3
1Mile High Eye Institute, 3535 River Point Pkwy, Sheridan, CO, 80110, USA. drvest@mhei.com.
Ophthalmology and Therapy
|January 15, 2025
Summary
Third-generation trabecular micro-bypass stent (iStent infinite) implantation with cataract surgery significantly lowered intraocular pressure and medication use in primary open-angle glaucoma patients. This real-world study shows favorable safety and efficacy at 12 months.
Area of Science:
- Ophthalmology
- Glaucoma Surgery
- Medical Devices
Background:
- Assessed real-world efficacy and safety of iStent infinite implantation with phacoemulsification.
- Focused on patients with mild-to-moderate primary open-angle glaucoma (POAG).
Purpose of the Study:
- Evaluate the effectiveness of iStent infinite in reducing intraocular pressure (IOP) and medication burden.
- Assess the safety profile and need for secondary procedures post-implantation.
Main Methods:
- Retrospective case series of 121 eyes undergoing phacoemulsification and iStent infinite implantation.
- Monitored IOP, medication use, and adverse events over 12 months.
- Analyzed data for both observed and consistent cohorts.
Main Results:
- Mean IOP reduced by 23.8% (18.1 to 13.8 mmHg) and medication use by 23.2% at 12 months (p<0.001).
- Proportions achieving target IOP (≤18/15/12 mmHg) significantly increased.
- Adverse events were mostly mild; <3% required secondary glaucoma interventions.
Conclusions:
- iStent infinite combined with cataract surgery provides significant IOP and medication reduction.
- Demonstrates favorable safety and efficacy in a real-world setting.
- Represents one of the largest published datasets for this device in combination with cataract surgery.
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