Living with Oligocone trichromacy
A non-progressive eye condition with reduced sharpness of vision but normal color vision.
Understanding Oligocone trichromacy
It is a non-progressive form of cone dysfunction. The back of the eye looks normal on exam, but electroretinogram tests show weak or missing cone responses. Unlike other cone conditions, color vision is normal. GARD lists onset as a variety of ages.
Signs & symptoms
Symptoms vary from person to person. GARD lists these among the most common:
- Reduced sharpness of vision
- Extreme sensitivity to light (photophobia)
- Abnormal electroretinogram
Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.
Diagnosis
- 1Talk with your doctor
Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.
- 2See a specialist
Specialists who may be involved include eye disease specialists and genetic specialists.
- 3Ask which tests can help
Your care team will decide which exams and tests can confirm the diagnosis.
Care & treatment
- Care team
- Eye disease specialists (ophthalmologists); Genetic specialists (geneticists)
- Expert care
- Ask about multidisciplinary care centers for rare conditions
- Treatment
- GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
- Research
- Clinical trials and observational studies may be options. See the research section below.
General information, not medical advice. Your care team makes the decisions.
Everyday life
Living with a rare condition is easier with support.
- Connect with rare disease patient organizations for support
- Keep notes on symptoms, changes and questions for appointments
- Ask about patient registries that help research
- Look into financial aid and travel resources for care visits
Quick facts
GARD says changes in genes cause this condition. It can be inherited in an autosomal dominant way, where one changed copy can be enough, or an autosomal recessive way, where a child inherits a changed copy from each parent.
Also known as: oligocone syndrome
Patient organizations
Rare-disease groups that can help
- Global GenesRare Diseases · United States
- National Organization for Rare DisordersRare Diseases · United States
- Genetic AllianceRare Diseases · United States
- RARE FoundationRare Diseases · United States
You are more than your diagnosis
Perspectives from people navigating life with Oligocone trichromacy.
Explore research for Oligocone trichromacy
Explore actively recruiting Oligocone trichromacy studies with HealthSpark.
Find actively recruiting studies for Oligocone trichromacy with HealthSpark. Share your city to explore research near you.
- Recruiting studies from ClinicalTrials.gov
- Share your city to look for research near you
- Eligibility is confirmed by the study team
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Powered by HealthSpark, our AI chat helper · Study information from ClinicalTrials.gov · Eligibility is confirmed by the study team.
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