Stimulating the retina from inside to give clearer artificial vision
Intraretinal stimulation for high acuity artificial vision
A new intraretinal implant approach aims to give people with outer retinal degeneration, such as age-related macular degeneration, sharper and more stable artificial vision.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Michigan at Ann Arbor NIH-funded |
| Lab location | 1 site (Ann Arbor, United States) |
| Project ID | NIH-11318905 on NIH RePORTER |
What this research studies
This project develops intraretinal stimulation technology that targets inner retinal neurons to produce clearer visual percepts. Researchers will refine device designs and stimulation methods to improve spatial precision and prevent the rapid fading of electrically evoked vision. The work uses animal and laboratory experiments to guide designs that avoid activating passing nerve fibers and reduce charge thresholds. The ultimate goal is to create an implant suitable for human use that can provide substantially better functional vision.
Who could benefit from this research
Good fit: Ideal candidates are people with severe outer retinal degeneration (for example advanced age-related macular degeneration) who have lost photoreceptors but still retain inner retinal neurons and are eligible for an implant.
Not a fit: Patients whose vision loss stems from damage to the optic nerve or inner retina, or who have extensive retinal scarring, are unlikely to benefit from this type of retinal implant.
Why it matters
Potential benefit: If successful, this approach could improve artificial vision to roughly 20/160 acuity and produce longer-lasting, clearer percepts that help with tasks like face recognition and reading larger print.
How similar studies have performed: Existing retinal prostheses have safely provided coarse vision—allowing detection of large objects and simple shapes—but have not achieved high acuity, and this project applies novel methods to try to overcome those limits.
Where this research is happening
Ann Arbor, United States
- University of Michigan at Ann Arbor — Ann Arbor, United States (Active)
Researchers
- Principal investigator: Weiland, James D. — University of Michigan at Ann Arbor
- Study coordinator: Weiland, James D.
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.