PRIMA Retinal Implant and Geographic Atrophy: A Promising Step Toward Restoring Functional Vision
For people living with advanced vision loss, the possibility of restoring sight can sometimes feel far away.
For years, much of retinal disease care has focused on slowing disease progression, preserving remaining vision, and helping people adapt to changes in what they can see. But advances in technology are beginning to expand what may be possible for people with severe retinal conditions.
One technology receiving significant attention is PRIMA, an investigational retinal implant being developed by Science Corporation.
Early clinical research suggests PRIMA may restore some functional central vision for people with advanced geographic atrophy, a form of advanced dry age-related macular degeneration (AMD).
The results are encouraging, particularly for people who have experienced severe central vision loss. At the same time, it is important to understand what PRIMA is, what researchers have learned so far, and where this technology stands today.
At The Low Vision Centers of North Carolina, we believe patients and families deserve access to understandable information about emerging developments in vision restoration while maintaining realistic expectations about what these technologies can currently do.
What Is Geographic Atrophy?
Before discussing PRIMA, it helps to understand the condition it was initially designed to address.
Geographic atrophy (GA) is an advanced form of dry age-related macular degeneration that causes areas of the retina to progressively lose important cells, including retinal pigment epithelial cells and photoreceptors.
Because geographic atrophy commonly affects the macula, the part of the retina responsible for detailed central vision, it can significantly interfere with activities such as reading, recognizing faces, seeing fine details, and performing other tasks that require clear central vision.
For people with advanced geographic atrophy, the resulting vision loss can significantly affect independence and quality of life.
The PRIMA system represents a different approach to addressing this type of vision loss.
What Is the PRIMA Retinal Implant?
PRIMA is a small photovoltaic retinal implant designed to work around damaged photoreceptors.
Photoreceptors are specialized cells in the retina that respond to light and play an essential role in sending visual information to the brain. In advanced retinal diseases such as geographic atrophy, many of these cells may be severely damaged or lost.
Rather than trying to repair damaged photoreceptors, PRIMA offers an alternative way to stimulate the visual system.
The system combines a tiny implant placed beneath the retina with specially designed glasses. The glasses project patterned near-infrared light onto the implant. The photovoltaic implant converts that light into electrical signals that stimulate surviving retinal nerve cells.
The goal is to create visual information the brain can ultimately interpret.
In simple terms, PRIMA is designed to work around some retinal damage rather than repair the damaged photoreceptors themselves.
What Have Researchers Found About PRIMA and Geographic Atrophy?
Research on PRIMA has attracted considerable attention because clinical trial participants showed measurable improvements in functional central vision.
The PRIMAvera clinical study evaluated 38 people with geographic atrophy caused by advanced dry age-related macular degeneration. The study’s results were published in The New England Journal of Medicine.
Of the 38 participants who received the implant, 32 completed the 12-month assessment. Among those 32 participants, 26, or 81%, experienced a clinically meaningful improvement in visual acuity.
Researchers also used statistical methods to account for the six participants who did not complete the 12-month assessment and estimated that approximately 80% of the overall study population would have experienced meaningful improvement.
Some participants could use the PRIMA system to recognize and read letters, numbers, and words.
These findings are significant because the participants had severe central vision loss associated with geographic atrophy.
However, PRIMA does not restore normal eyesight.
The visual information produced by a retinal prosthesis differs from natural vision, and people using the system need training and time to learn to interpret what they see. The clinical trial also reported serious adverse events, many of which occurred around the time of surgery, underscoring the importance of continued research into both the benefits and risks of the technology.
Even with those limitations, the results represent an important development in the field of vision restoration.
Why Is PRIMA Important for People With Geographic Atrophy?
For someone living with advanced geographic atrophy, losing central vision can make familiar activities much more challenging.
Reading a newspaper, seeing the details on a phone screen, recognizing a face across a room, identifying medications, or completing hobbies that require detailed vision may become increasingly difficult.
Traditional low vision care remains an important resource for people experiencing these changes.
Low vision specialists can recommend strategies, optical devices, electronic magnification, adaptive technology, environmental modifications, and other approaches designed to help people make better use of the vision they still have.
For some people with advanced retinal disease, technologies such as PRIMA could eventually provide another option.
Dr. Edward Paul, Principal at the Paul Vision Institute and our Founder and CEO here at The Low Vision Centers of North Carolina, views developments like PRIMA as an encouraging sign for the future of vision care:
“We’re always excited to see new technologies that may change the future of vision care. The investigational PRIMA retinal implant is one of the most promising advances we’ve seen for people with advanced retinal disease. While it’s still being studied and isn’t yet widely available, it gives us real hope that restoring vision may one day become a reality instead of just a dream.”
That optimism is understandable. But it is equally important to understand where PRIMA stands today.
Is the PRIMA Retinal Implant Available Now?
Not as a routine treatment in the United States.
PRIMA remains an investigational medical device and is not currently available for general purchase. Science Corporation’s current information indicates that its PRIMA program for advanced atrophic dry AMD and geographic atrophy is still progressing through regulatory and clinical stages.
In March 2026, Science Corporation announced that it submitted an application for a CE Mark in Europe and applied to the U.S. Food and Drug Administration for regulatory approval.
That means patients should not view PRIMA as a treatment that can currently be routinely prescribed or obtained in the United States.
Instead, it is an important area of ongoing clinical research.
Science is also investigating potential applications of the technology for other retinal conditions, including inherited retinal diseases such as retinitis pigmentosa and Stargardt disease. Those applications remain under development.
What Does PRIMA Mean for the Future of Vision Restoration?
PRIMA research matters because it shows researchers may be able to use technology to provide useful visual information even after significant retinal damage has occurred.
That does not mean that everyone with geographic atrophy will eventually be a candidate for a retinal implant. It also does not mean that current low vision care is no longer necessary.
Quite the opposite.
As vision restoration technologies continue to develop, comprehensive low vision care remains an important part of helping people live well with vision loss today.
If you or someone you love is living with geographic atrophy, macular degeneration, or another retinal condition that has caused significant vision loss, you do not necessarily have to wait for future technology to find ways to improve daily life.
A comprehensive low vision evaluation can help identify practical strategies and visual solutions based on your specific needs and goals.
At The Low Vision Centers of North Carolina, we look beyond a visual acuity chart. We take the time to understand what you want and need to do in your everyday life and develop recommendations around those goals.
As technologies such as PRIMA continue to evolve, we will continue to follow research and developments in the field of vision restoration.
A Promising Future, With Realistic Expectations
For people living with advanced geographic atrophy, restoring some functional central vision is no longer purely theoretical.
Results from the PRIMAvera clinical trial offer an encouraging glimpse of what may be possible when retinal implants, digital imaging, and vision science come together.
But there is still more to learn.
PRIMA remains investigational, regulatory review is ongoing, and additional research will be needed to better understand its long-term effectiveness, safety, accessibility, and potential applications.
For now, the most important message is one of hope paired with realistic expectations.
The future of vision restoration is evolving. And for people affected by geographic atrophy and other forms of severe retinal vision loss, that progress is worth watching.
A Note About PRIMA
PRIMA is an investigational medical device and is not currently available as a routine treatment in the United States. Clinical research and regulatory review are ongoing. Information about investigational treatments can change as research progresses. Patients should speak with their ophthalmologist, optometrist, or low vision specialist about their individual condition and currently available treatment and rehabilitation options.
Take the Next Step Toward Better Vision
If you’re living with geographic atrophy, macular degeneration, or another condition causing significant vision loss, you don’t have to wait for emerging technologies to explore ways to make the most of the vision you have today.
A low vision consultation can help determine whether specialized glasses, magnification, or other low vision solutions may help you see and do more in your daily life.
At The Low Vision Centers of North Carolina, we believe there can be life after vision loss. If you’ve been told there’s nothing more that can be done, it may be worth exploring your options.
