X-linked Retinoschisis (XLRS)
A rare inherited retinal disease that primarily affects males and causes progressive changes in the structure and function of the retina.
Understanding X-linked Retinoschisis
X-linked Retinoschisis (XLRS) is a rare inherited retinal disease that primarily affects males and causes progressive changes in the structure and function of the retina.
The condition is characterised by splitting (schisis) within the retinal layers, particularly affecting the macula — the central area of the retina responsible for detailed vision.
XLRS can affect vision from childhood and may cause reduced visual acuity, difficulties with reading and detailed tasks, and in some cases complications such as retinal detachment or bleeding inside the eye.
The severity of XLRS varies widely between individuals. Some people maintain relatively stable vision, while others experience progressive visual impairment.
Although there is currently no approved cure for XLRS, advances in genetic diagnosis, retinal imaging, and emerging treatments are improving understanding of the condition and creating new opportunities for research.
Retina International works with people affected by XLRS, patient organisations, researchers, clinicians, and partners worldwide to advance inherited retinal disease research and support progress towards improved outcomes.
What is X-linked Retinoschisis?
X-linked Retinoschisis is an inherited retinal disease that affects the structure of the retina.
The retina is made up of multiple layers of specialised cells that work together to process light and send visual information to the brain. In XLRS, these layers can separate, creating spaces or “splits” within the retina.
The condition most commonly affects the macula, which is responsible for:
- Sharp central vision
- Reading
- Recognising faces
- Seeing fine details
XLRS is usually identified during childhood, often when reduced vision is noticed during school years.
The condition is called X-linked because the gene responsible is located on the X chromosome. This means it primarily affects males, although some female carriers may have retinal changes or, rarely, symptoms.
XLRS is also known as:
- Juvenile retinoschisis
- Congenital retinoschisis
- X-linked juvenile retinoschisis
1 gene
Caused by changes in the RS1 gene, which provides instructions for the retinoschisin protein.
X-linked inheritance
XLRS primarily affects males, while females are usually carriers.
Childhood onset
Usually identified during childhood
How XLRS can affect vision
Reduced central vision
Changes affecting the macula can cause difficulty seeing fine details and performing tasks such as reading.
Blurred vision
Many people experience reduced clarity of vision.
Difficulty with reading and school activities
Children may experience challenges with classroom tasks due to reduced visual acuity.
Strabismus (crossed or misaligned eyes)
Some children with XLRS may develop eye alignment problems.
Nystagmus
Some individuals experience involuntary eye movements.
Reduced depth perception
Changes in central vision may affect spatial awareness.
Complications
Some people may develop:
- Retinal detachment
- Vitreous haemorrhage (bleeding inside the eye)
These complications require urgent medical attention.
Identifying X-linked Retinoschisis
Eye examination
An ophthalmologist examines the retina for characteristic changes.
Optical coherence tomography (OCT)
OCT is particularly important in XLRS as it can show splitting between retinal layers and monitor changes over time.
Fundus photography
Retinal photographs can help document changes and progression.
Visual function testing
Assessment may include:
- Visual acuity testing
- Visual field testing
Electroretinography (ERG)
ERG measures retinal electrical activity and can provide supportive diagnostic information.
Genetic testing
Genetic testing can identify changes in the RS1 gene and confirm XLRS.
A genetic diagnosis can help:
- Clarify inheritance
- Support family counselling
- Identify research opportunities
- Guide future treatment options
Supporting vision and maintaining independence
Regular monitoring
Routine eye examinations are important to:
- Track retinal changes
- Monitor visual function
- Identify complications early
Low vision support
Support may include:
- Magnification devices
- Assistive technology
- Accessible learning tools
- Vision rehabilitation
Educational support
Children and adults may benefit from:
- Classroom accommodations
- Accessible materials
- Workplace adjustments
Managing complications
Some complications may require medical or surgical treatment, including:
- Retinal detachment
- Vitreous haemorrhage
Emerging treatments
Research is exploring treatments that target the underlying genetic cause of XLRS.
Potential approaches include:
- Gene replacement therapy
- Gene-based treatments
- Retinal protection strategies
Supporting independence and participation
Living with XLRS can involve adapting to reduced central vision and understanding how the condition may affect education, employment, and daily activities.
Support may include:
- Early access to vision services
- Assistive technology
- Educational support
- Workplace adaptations
- Peer networks
- Patient organisations
Because XLRS often begins in childhood, early support can help children develop strategies to learn, communicate, and participate confidently.
Families may also benefit from genetic counselling to understand inheritance patterns and future risks.
The experiences of people living with XLRS are essential in shaping research priorities and improving care.
Advancing the future of XLRS treatment
Gene therapy
Researchers are exploring whether delivering a healthy copy of the RS1 gene could restore retinoschisin production and improve retinal structure.
Learn About Gene TherapyAdvanced imaging
Advanced imaging technologies help researchers:
- Understand disease progression
- Identify biomarkers
- Measure treatment effects
Natural history studies and registries
Long-term studies help researchers understand how XLRS changes over time and design effective clinical trials.
Learn About Natural History StudiesClinical trials
Research studies are investigating potential therapies aimed at slowing retinal changes and improving outcomes.
Learn About Clinical TrialsInformation and community support
Take the Next Step
X-linked Retinoschisis demonstrates the importance of genetic understanding, early support, and continued innovation in inherited retinal disease research.
Through collaboration between patients, families, researchers, clinicians, and organisations worldwide, progress continues towards better diagnosis, improved support, and future therapies that may preserve vision.
