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Living with Oculomotor apraxia - Cogan type

An eye condition in which side-to-side eye movements are impaired, so people turn their heads to follow objects.

Understanding Oculomotor apraxia - Cogan type

Oculomotor apraxia, Cogan type is an eye condition in which side-to-side (horizontal) eye movements do not work normally.

Most people have to turn their head to follow things to the side. Up-and-down eye movements are usually normal. It can come with mild developmental delay and speech difficulties, and sometimes with kidney problems and an underdeveloped part of the cerebellum. When other symptoms occur, it can be a sign of conditions like nephronophthisis or Joubert syndrome. GARD lists childhood as the usual onset.

Signs & symptoms

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

  • Trouble with side-to-side eye movements (oculomotor apraxia)
  • Jerky head movements to follow objects
  • Trouble coordinating movement (ataxia)
  • Delayed speech and language development
  • Delayed motor skills
  • Learning disability

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 Joubert Syndrome & Related Disorders Foundation
  • 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
Should my child's kidneys be checked, since they can be involved?
Could this be part of a larger condition like Joubert syndrome?
What therapies can help with speech and movement?

Quick facts

Symptoms usually startChild
InheritanceAutosomal Recessive

GARD says the cause is not known in many cases. Cases support an autosomal recessive pattern, where a child inherits a changed copy of the gene from each parent.

Genetic

Also known as: congenital saccade initiation failure; ocular motor apraxia cogan type; ocular motor apraxia, cogan type; oculomotor apraxia, cogan type; oculomotor apraxia, congenital, cogan-type; saccade initiation failure, congenital

Patient organizations

Source: NIH GARD · Oculomotor apraxia - Cogan typeGARD ID 16 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

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