New Treatments Target the Genetic Cause of Inherited Retinal Disease

If you or a loved one has an inherited retinal disease (IRD), you know how hard it is to experience vision slowly fading. These rare genetic conditions affect the light sensitive cells in the back of your eye. For a long time, doctors could only help people adapt to vision loss, not stop it from happening. But things are changing fast. New genetically targeted therapies and treatments are giving real hope to people with conditions like retinitis pigmentosa, Stargardt disease, Leber congenital amaurosis, and other inherited retinal disorders.

Historic Treatments Managed Symptoms

Until now, treating inherited retinal diseases meant helping people adjust to losing their vision rather than fixing what causes it. Here’s what doctors typically do:

• Tools and training for low vision: Special magnifiers, canes, and learning to get around safely help people stay independent as their vision gets worse.
• Vitamin A pills: For some types of retinitis pigmentosa, taking high-dose vitamin A might slow down vision loss. This doesn’t work for everyone and you need a doctor to monitor you carefully.
• Regular eye checkups: Eye doctors watch how the disease is progressing and treat any other eye problems that come up, like cataracts.

These things still matter, but they don’t stop the genetic cause of vision loss. That’s what makes new gene therapies so exciting—they can actually treat what’s causing the problem.

Gene Therapy and Other New Treatments Fix the Problem at Its Source

In 2017, the FDA approved the first gene therapy for inherited blindness —Luxturna (voretigene neparvovec-rzyl)—for people with RPE65-related retinal dystrophy. Clinical trials showed that Luxturna could improve vision in many patients, demonstrating that gene therapy for inherited retinal diseases was feasible. This approval paved the way for research into gene therapies for other genetic causes of vision loss.

Now, scientists are building on that success and creating gene therapies for many other types of inherited retinal disease. Here’s what they’re working on:

Gene Replacement Therapy: Replacing the Broken Gene

Think of this like giving your eye cells a working copy of the instruction manual they’re missing. Scientists take a healthy version of the broken gene and deliver it right into your eye cells. They use a modified virus (called AAV) as a delivery truck to get the gene where it needs to go. The gene is injected either under the retina or into the main part of your eye. Once it’s in your cells, they start making the protein they were missing, and your retina can work better.

Several of these treatments are being tested in people right now:

• ATSN-101 for LCA1: After 12 months, people in the study had better vision with no serious problems.
• OPGx-LCA5 for LCA5: Early results from a small number of patients are promising.
• ATSN-201 for X-linked retinoschisis: This uses a special delivery system that might be safer and still gets the gene to the center of your retina.
• SB-007 for Stargardt disease: Started treating people in early 2025 to see if it’s safe and helps with ABCA4 gene problems.

Gene-Agnostic Therapies: Treatments That Work for Any Gene Change

This is one of the most exciting new areas. These treatments work no matter which gene is changed. That means they can help many more people with retinitis pigmentosa and other inherited retinal diseases.

How it works: Instead of delivering working genes to your existing light-sensing cells, these treatments teach other cells in your retina to sense light. These cells then act like new light sensors. This means you might get vision back even after the original light-sensing cells are gone.

• MCO-010 has shown promising results. In a study of people with severe vision loss from retinitis pigmentosa, about half of the participants gained an average of three lines of vision on the eye chart.
• ZM-02 is another treatment like this that just got permission from the FDA to start testing in the United States. Early results from China showed that a single injection of this therapy led to significant improvement in vision.

Other treatments being developed include:

• Cell replacement: Instead of adding genes, scientists are creating new light-sensing cells from stem cells and putting them in your eye. The first person got this treatment in July 2025.
• Protective treatments: These are designed to keep the retinal cells you still have from dying, which could slow down the disease for many different genetic types.

RNA-Based Treatments

Beyond putting in a new gene, scientists are working on treatments that change how your existing genes work:

• RNA editing creates corrected instructions for making proteins in your cells without permanently changing your DNA. Your cells still have the genetic error, but the treatment helps them produce working protein. This approach is being studied for several inherited retinal diseases.
• Antisense oligonucleotides (ASOs) are tiny molecules that can attach to your RNA and change how genes are expressed. Scientists are studying these for different types of inherited retinal disease. One advantage is that you might be able to get repeat doses to keep the treatment working over time.

Genetic Testing: Your First Step Toward Treatment

For people with specific genetic causes of their vision loss, genetic testing is the most important first step toward getting these therapies.

When you get genetic testing for your retinal disease, you can potentially:

• Find out which gene is causing your or your family member’s vision loss
• Understand how it runs in families and what that means for other relatives
• See if you qualify for research studies testing gene therapies for your specific genetic type
• Get access to treatments as they become available
• Plan ahead with accurate information about what to expect
• Make family planning choices if that’s something you’re thinking about

At Genome Medical, we analyzed data from 441 people with retinitis pigmentosa who got genetic testing through our services. Almost half (48.5%) found out exactly which gene was causing their vision loss. This information helped them understand their condition better, know about family risks, and learn about possible treatments.

Our telehealth genetic counselors have helped hundreds of people with retinal diseases get access to genetic testing and answers. To learn more about genetic counseling and testing for retinal disease, visit our retinal disease page or schedule an appointment to speak with a genetic counselor.

Clinical Trials: Get Access to New Treatments

Many gene therapy programs are looking for people to join their research studies (called clinical trials). These studies let you try promising treatments before the FDA approves them for everyone. You also help with research that will help other people in the future.

Once you know your genetic results, you can search for trials using resources like ClinicalTrials.gov. You can search by condition name or by your specific gene. Each trial listing will explain who can join, where the study is located, and how to contact the research team.

At Genome Medical, we also help connect people with research studies that match their situation. You can choose to be contacted about studies that fit your specific genetic diagnosis and health situation.

What This Means for You and Your Family

For people with inherited retinal diseases, gene therapies are changing how we think about these conditions. Instead of just managing symptoms, we can now potentially treat what’s causing the problem. There’s a real chance to stop or slow down vision loss.

At Genome Medical, we’re here to keep you updated on new developments and help you and your family get genetic testing, expert genetic counseling, and information about research studies. Whether you’re newly diagnosed, have a family history of retinal disease, or are just looking for answers about your vision, we’re here to help guide you toward the best possible care—today and in the future.