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Living with Optic pathway glioma

A non-cancerous tumor along the optic nerve pathway that can affect vision, growth, and sleep, and is often linked to neurofibromatosis type 1.

Understanding Optic pathway glioma

Optic pathway glioma is a benign tumor that develops along the optic nerve pathway and can cause vision problems.

It forms along the optic nerve, chiasm, tracts, and radiations. It may impair or take away vision and may cause symptoms from nearby brain areas, such as slowed growth and changes in sleep. It is often linked to neurofibromatosis type 1 (NF1). GARD lists onset as any time in life.

Signs & symptoms

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

  • Reduced sharpness of vision
  • Vision loss
  • Quick, involuntary eye movements (nystagmus)
  • Damage to the optic nerve (optic atrophy)
  • Neurofibromas
  • Slowed growth and sleep changes

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, genetic specialists and hormone specialists.

  3. Ask which tests can help

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

  4. Connect with expert centers

    Raymond A. Wood Foundation and Pituitary Network Association may keep lists of experts for this condition.

Care & treatment

Care team
Brain and nervous system specialists (neurologists); Cancer specialists (oncologists); Genetic specialists (geneticists); Hormone specialists (endocrinologists)
Expert care
Expert lists: Raymond A. Wood Foundation, Pituitary Network Association
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 Raymond A. Wood Foundation and other patient organizations
  • 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
Do I or my child have NF1, and should we be tested?
How often should vision and the tumor be checked?
Should growth and hormones be monitored?

Quick facts

Symptoms usually startany time in life

GARD says changes in genes cause this condition. It is often linked to neurofibromatosis type 1 (NF1).

GeneticNeurologicalEndocrine

Also known as: glioma of optic tract; glioma of the optic tract; glioma of the visual pathway; glioma of visual pathway; optic tract glioma; visual pathway glioma

Patient organizations

Source: NIH GARD · Optic pathway gliomaGARD ID 4107 · 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 Optic pathway glioma.

Explore the Optic pathway glioma blog

Explore research for Optic pathway glioma

Explore actively recruiting Optic pathway glioma studies with HealthSpark.

HealthSpark

Find actively recruiting studies for Optic pathway glioma 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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