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Living with Cogan-Reese syndrome

An eye condition affecting one eye, usually in young to middle-aged women, with changes to the iris and a risk of glaucoma.

Understanding Cogan-Reese syndrome

Cogan-Reese syndrome is one type of iridocorneal endothelial (ICE) syndrome, an eye condition that involves one eye.

ICE syndromes mostly affect young to middle-aged women, and some cases have been reported in children. Features can include a matted or smudged look to the iris surface, small colored lumps on the iris, parts of the iris attaching to the cornea, and increased eye pressure (glaucoma).

Signs & symptoms

Symptoms vary from person to person. GARD says they may include:

  • Matted or smudged look of the iris
  • Small colored lumps on the iris
  • Parts of the iris stuck to the cornea
  • Increased eye pressure (glaucoma)

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 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
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 eye pressure be checked?
What can be done to protect my vision?
Which eye specialists should follow my care?

Quick facts

GARD doesn't describe a cause for this condition yet.

Genetic

Also known as: iris nevus syndrome; nodular unilateral glaucoma

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Cogan-Reese syndromeGARD ID 6125 · 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 Cogan-Reese syndrome.

Explore the Cogan-Reese syndrome blog

Explore research for Cogan-Reese syndrome

Explore actively recruiting Cogan-Reese syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Cogan-Reese syndrome 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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