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Start free with EleplanAutosomal dominant progressive external ophthalmoplegia
ORPHA:254892Disease
Also called adPEO
What it is
A rare genetic, neuro-ophthalmological disease characterized by progressive weakness of the external eye muscles, resulting in bilateral ptosis and diffuse symmetric ophthalmoparesis. Additional signs may include skeletal muscle weakness, cataracts, hearing loss, sensory axonal neuropathy, ataxia, parkinsonism, cardiomyopathy, hypogonadism and depression. It is usually less severe than autosomal recessive form.
Key facts
- Age of onset
- Adolescent, Adult
- Inheritance
- Autosomal dominant
- Classified as
- Disease
Signs and symptoms
Common30–79%
18- Abnormality of eye movement
- Abnormality of the mitochondrion
- Bradykinesia
- Cytochrome C oxidase-negative muscle fibers
- EMG: myopathic abnormalities
- Exercise intolerance
- Facial palsy
- Fatigue
- Hypomimic face
- Limb muscle weakness
- Mitochondrial myopathy
- Myopathy
- Ophthalmoparesis
- Ophthalmoplegia
- Quadriceps muscle weakness
- Ragged-red muscle fibers
- Resting tremor
- Shoulder girdle muscle weakness
Sometimes5–29%
42- Abnormality of extrapyramidal motor function
- Anxiety
- Arrhythmia
- Ataxia
- Atrial fibrillation
- Cataract
- Cerebellar atrophy
- Cogwheel rigidity
and 34 more in this range
These ranges are how often a sign appears across everyone diagnosed, not a prediction for one person — most people have some of these and not others. Orphanet also records findings that are specifically absent in this disease; those are in the data but not listed here.
Genes
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Related health topics
Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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