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Living with Retinal capillary malformation

A rare eye condition affecting small blood vessels in the retina; it often causes no symptoms but may cause blurred vision or floaters.

Understanding Retinal capillary malformation

Retinal capillary malformation is a rare, non-cancerous blood vessel growth in the retina, usually in one eye.

GARD's summary describes it as a benign growth of blood vessels with grape-like pockets. In most people it causes no symptoms. Some people notice blurred vision or floaters. It may be found at any time in life.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Reduced clarity of vision
  • Blood vessel growth in the retina (hemangioma)
  • Blurred vision
  • Floaters

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include brain and nervous system specialists, cancer specialists, eye disease specialists and genetic specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Cancer specialists (oncologists); 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
Bring these questions to your next doctor visit
How often should my eyes be checked for changes?
Could blurred vision or floaters mean this condition is changing?
Is genetic testing available for my family?

Quick facts

Symptoms usually startany time in life
InheritanceAutosomal Dominant

GARD lists autosomal dominant inheritance, so one changed copy of a gene can be enough. It does not name a gene.

GeneticNeurological

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Retinal capillary malformationGARD ID 18908 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Retinal capillary malformation.

Explore the Retinal capillary malformation blog

Explore research for Retinal capillary malformation

Explore actively recruiting Retinal capillary malformation studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Retinal capillary malformation 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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