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Living with Holmes-Adie syndrome

A nerve condition affecting one pupil, which is larger and slow to react to light, plus missing deep reflexes.

Understanding Holmes-Adie syndrome

Holmes-Adie syndrome is a neurological condition that affects the pupil of the eye and the autonomic nervous system.

One eye has a larger than normal pupil that tightens slowly in bright light (tonic pupil). Deep tendon reflexes, usually in the Achilles tendon, are absent. In most cases, the cause is unknown. When only the pupil is affected, it may be called Adie's pupil. It usually begins in adults.

Signs & symptoms

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

  • Tonic pupil (slow to react to light)
  • Dilated pupil (mydriasis)
  • Pupils of different sizes (anisocoria)
  • Absent tendon reflexes (areflexia)
  • Blurred vision
  • Abnormal pupil reaction to light

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.

  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)
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
What eye tests do I need for the pupil?
Can anything help with blurred vision or light sensitivity?
Should I see a neurologist?

Quick facts

Symptoms usually startAdult
InheritanceAutosomal Dominant

In most cases the cause is unknown. Some cases may result from trauma, surgery, lack of blood flow, or infection. GARD also lists autosomal dominant inheritance.

Also known as: adie pupil; adie syndrome; adie's pupil; adie's pupil or syndrome; adie's pupil syndrome; adie's syndrome

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Holmes-Adie syndromeGARD ID 5749 · 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 Holmes-Adie syndrome.

Explore the Holmes-Adie syndrome blog

Explore research for Holmes-Adie syndrome

Explore actively recruiting Holmes-Adie syndrome studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Holmes-Adie syndrome with HealthSpark. Share your city to explore research near you.

  • Recruiting studies from ClinicalTrials.gov
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  • 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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