Surgical Roundtable Case 4: Implanting a Subretinal Photovoltaic Prosthesis - Report - MDSpire
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Surgical Roundtable Case 4: Implanting a Subretinal Photovoltaic Prosthesis
Frank Brodie, MD, MBA, presents the surgical technique for subretinal placement of the PRIMA implant, an investigational therapy for advanced geographic atrophy.
Clinical Report: Surgical Roundtable Case 4: Implanting a Subretinal Photovoltaic Prosthesis
Overview
The PRIMA subretinal implant is an investigational therapy for patients with advanced geographic atrophy (GA). The surgical technique involves subretinal placement of a photovoltaic device.
Background
Geographic atrophy (GA) is a leading cause of vision loss in age-related macular degeneration (AMD). Current treatment options are limited, making innovative approaches like the PRIMA subretinal implant important for vision restoration.
Data Highlights
The PRIMAvera trial reported that 80% of patients with 20/400 vision or worse could read letters and numbers after implantation of the PRIMA device.
Key Findings
The PRIMA implant is a subretinal photovoltaic device designed for patients with advanced GA.
In the PRIMAvera trial, improvements in central visual function were observed at 12 months post-implantation.
The implant utilizes infrared goggles to stimulate surviving inner retinal neurons.
Controlled subretinal bleb creation is crucial for safe implant insertion.
No instances of buttonholing were reported in the trial involving 38 patients.
Clinical Implications
The PRIMA subretinal implant is an investigational therapy for vision restoration in patients with GA. Surgeons should be aware of the unique surgical techniques required for implantation.
Conclusion
The PRIMA subretinal photovoltaic prosthesis is an investigational therapy for restoring vision in patients with advanced geographic atrophy.
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