EYS rs527236077: What Your Genotype Means
The genetic variant rs527236077 is a rare alteration located within the EYS gene, which is essential for maintaining the structure and health of the retina. This variant has been associated with an increased risk of developing retinitis pigmentosa, a group of inherited eye disorders characterized by progressive vision loss.
What each genotype means
Typical risk profile
This is the common, ancestral genotype for this position in the EYS gene. It is not associated with the increased risk of retinitis pigmentosa linked to this specific variant.
This is the most common genotype observed in the general population.
Carrier status
You carry one copy of the variant associated with an increased risk of retinitis pigmentosa. Because this condition is typically inherited in an autosomal recessive pattern, carrying a single copy is generally not sufficient to cause the disease, though you should consult with a genetic counselor to understand your specific risk profile.
This genotype is rare in the general population.
Increased risk profile
You carry two copies of this variant, which has been classified as probable-pathogenic in clinical databases in relation to retinitis pigmentosa. This condition is characterized by progressive vision loss, and you should discuss these findings with an ophthalmologist or a clinical geneticist to determine if further diagnostic testing or clinical evaluation is appropriate.
This genotype is very rare in the general population.
Understanding the EYS Gene
The EYS gene, located on chromosome 6, provides the essential instructions for creating the eyes shut homolog protein. This protein is fundamentally important for the survival and function of photoreceptor cells, which are the light-sensitive rods and cones in your retina that allow you to see. EYS acts as a vital structural component, helping to maintain the delicate architecture of these photoreceptors and ensuring they are correctly organized within the eye. When this gene is significantly disrupted, the photoreceptor cells cannot maintain their proper shape or environment, eventually leading to their gradual breakdown and death. Because this gene is so large and specialized, it is considered a major contributor to various forms of inherited retinal degeneration. Understanding the role of this gene is the first step in comprehending how specific genetic variations can influence long-term ocular health and the maintenance of visual function over a person's lifetime.
Research and Evidence
Scientific research has established a strong connection between mutations in the EYS gene and autosomal recessive retinitis pigmentosa, sometimes referred to as RP25. In the context of rs527236077, evidence is categorized as moderate regarding its specific contribution to disease risk. Studies on EYS-related conditions show that patients typically experience a progressive decline in vision, often starting with night blindness and a narrowing of the peripheral visual field, known as tunnel vision. Because EYS mutations are inherited in an autosomal recessive pattern, a person usually needs to carry two copies of a pathogenic variant, one from each parent, to experience the associated vision loss. Researchers continue to study how different variants in this complex gene impact the protein's function and, consequently, the rate of visual decline in different individuals. While the association is documented, the clinical impact can vary significantly based on the specific combination of genetic factors present in an individual.
What This Information Means
If you have received a report regarding rs527236077, it is important to understand what this information can and cannot do for you. Genomic data is probabilistic; it provides insight into your genetic blueprint but does not serve as a medical diagnosis. You can consult a professional, such as an ophthalmologist or a board-certified genetic counselor, if you have concerns about your vision or a family history of eye disease. It is also helpful to stay informed using resources like MedlinePlus Genetics to understand the basics of inherited retinal conditions. Conversely, you should not use this information to self-diagnose, as the presence of a single variant is not a guarantee of disease. Genetic testing results must be interpreted by a specialist who can correlate them with clinical exams. Furthermore, do not ignore symptoms; regardless of your genetic report, if you notice changes in your vision, such as night blindness or peripheral vision loss, seek a professional eye examination promptly.
How common is this variant?
The variant rs527236077 is classified as rare. Large-scale genomic databases indicate that this specific variant does not appear frequently in the general population.
Frequently asked questions
What is retinitis pigmentosa?
Retinitis pigmentosa is a group of rare, inherited genetic disorders that involve a breakdown and loss of cells in the retina. It typically causes night blindness and a gradual loss of side, or peripheral, vision.
Is there a cure for EYS-related vision loss?
Currently, there is no widely available cure for EYS-related retinitis pigmentosa. Research is ongoing into gene therapies and other potential treatments, but these are complex due to the large size of the EYS gene.
Does having this variant mean I will go blind?
No. Having a genetic variant does not automatically mean you will develop a condition. Inherited retinal diseases often require two copies of a pathogenic variant to manifest, and the severity and progression can vary greatly between individuals.
Should I have my children tested?
If you are concerned about passing a genetic variant to your children, you should speak with a genetic counselor. They can help you understand the risks and the implications of genetic testing for family members.
Sources & further reading
Educational information only, last refreshed 9/24/2026. Not medical advice — these associations describe population statistics, not individual predictions.
Curious what your genotype is for rs527236077?
Upload a raw DNA file from 23andMe, AncestryDNA, MyHeritage, or FamilyTreeDNA and see this variant — plus thousands more — interpreted in your full report.
Get my report — $29