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Any congenital fibrosis of extraocular muscles in which the cause of the disease is a mutation in the PHOX2A gene.
Features include: Hypotropia, Restrictive external ophthalmoplegia, Congenital fibrosis of extraocular muscles, and Hypertropia and 4 more.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Eyes | 3 | Amblyopia, Visual impairment, Bilateral ptosis |
Muscles |
PHOX2A function has not been fully characterized.
Fibrosis of extraocular muscles, congenital, 2 is associated with mutations in the PHOX2A gene on chromosome 11.
Genetic testing for PHOX2A is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for fibrosis of extraocular muscles, congenital, 2 has been reported in the published literature.
No clinical trials have been registered for fibrosis of extraocular muscles, congenital, 2.
8 publications have been identified in PubMed for fibrosis of extraocular muscles, congenital, 2. Research spans Case Report / Case Series (38%), Diagnostic / Biomarker (25%), and Review / Meta-Analysis (13%).
Rashidi FS (2026). [PMID: 42222555](https://pubmed.ncbi.nlm.nih.gov/42222555/). *Basic Clin Neurosci*. [Basic Science / Preclinical]
Aufderheide K (2026). [PMID: 41870107](https://pubmed.ncbi.nlm.nih.gov/41870107/). *Int Ophthalmol Clin*. [Review / Meta-Analysis]
Jurgens JA (2025). [PMID: 40162949](https://pubmed.ncbi.nlm.nih.gov/40162949/). *Invest Ophthalmol Vis Sci*. [Diagnostic / Biomarker]
Kresentia S (2025). [PMID: 40320796](https://pubmed.ncbi.nlm.nih.gov/40320796/). *Eur J Ophthalmol*. [Case Report / Case Series]
Li YT (2025). [PMID: 39228029](https://pubmed.ncbi.nlm.nih.gov/39228029/). *J Neuroophthalmol*. [Case Report / Case Series]
Data assembled from 5 of 12 sources · Last updated Sep 20, 2026, 5:40 PM UTC
Online Mendelian Inheritance in Man
Genetic and Rare Diseases Info Center
1 |
Congenital fibrosis of extraocular muscles |
Pregnancy and birth | 1 | Congenital fibrosis of extraocular muscles |
Jurgens JA (2024). [PMID: 39314366](https://pubmed.ncbi.nlm.nih.gov/39314366/). *bioRxiv*. [Diagnostic / Biomarker]
Yuksel Sukun E (2024). [PMID: 38975553](https://pubmed.ncbi.nlm.nih.gov/38975553/). *Cureus*. [Epidemiology / Natural History]
Ocieczek P (2024). [PMID: 38927634](https://pubmed.ncbi.nlm.nih.gov/38927634/). *Genes (Basel)*. [Case Report / Case Series]