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Features include always present findings: Astigmatism, Nystagmus, Hypoplasia of the fovea, and Reduced visual acuity; and common findings: Strabismus. 11 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Eyes | 3 | Optic nerve misrouting, Strabismus, Nystagmus |
Skin | 1 | Foveal hyperpigmentation |
Age of onset: infancy.
SLC38A8 function has not been fully characterized.
Foveal hypoplasia - optic nerve decussation defect - anterior segment dysgenesis syndrome is caused by mutations in the SLC38A8 gene on chromosome 16.
Genetic testing for SLC38A8 is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for foveal hypoplasia - optic nerve decussation defect - anterior segment dysgenesis syndrome has been reported in the published literature.
Phenotype severity distribution: 4 always present features, 1 common feature.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
No clinical trials have been registered for foveal hypoplasia - optic nerve decussation defect - anterior segment dysgenesis syndrome.
106 publications have been identified in PubMed for foveal hypoplasia - optic nerve decussation defect - anterior segment dysgenesis syndrome. Research spans Case Report / Case Series (28%), Basic Science / Preclinical (17%), and Epidemiology / Natural History (17%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 29 | 28% |
Laboratory research | 17 | 17% |
Disease patterns and progression | 17 | 17% |
Research summaries | 16 | 16% |
Testing and diagnosis research | 11 | 11% |
Clinical study results | 10 | 10% |
New treatment approaches | 2 | 2% |
Other research | 1 | 1% |
Cheung R (2026). [PMID: 41537758](https://pubmed.ncbi.nlm.nih.gov/41537758/). *Invest Ophthalmol Vis Sci*. [Diagnostic / Biomarker]
Altinbay D (2026). [PMID: 41543258](https://pubmed.ncbi.nlm.nih.gov/41543258/). *Curr Eye Res*. [Diagnostic / Biomarker]
Chen C (2026). [PMID: 42195040](https://pubmed.ncbi.nlm.nih.gov/42195040/). *Genes (Basel)*. [Epidemiology / Natural History]
Brandsen RP (2026). [PMID: 41715990](https://pubmed.ncbi.nlm.nih.gov/41715990/). *Br J Haematol*. [Case Report / Case Series]
Strauss I (2026). [PMID: 41901014](https://pubmed.ncbi.nlm.nih.gov/41901014/). *Life (Basel)*. [Review / Meta-Analysis]
Maxwell GE (2026). [PMID: 42096227](https://pubmed.ncbi.nlm.nih.gov/42096227/). *JAMA Ophthalmol*. [Epidemiology / Natural History]
Sekhri R (2026). [PMID: 40864028](https://pubmed.ncbi.nlm.nih.gov/40864028/). *Ophthalmology*. [Basic Science / Preclinical]
Apam-Garduño D (2026). [PMID: 41917731](https://pubmed.ncbi.nlm.nih.gov/41917731/). *Ophthalmic Genet*. [Basic Science / Preclinical]
Chattannavar G (2026). [PMID: 41486651](https://pubmed.ncbi.nlm.nih.gov/41486651/). *Ophthalmic Genet*. [Basic Science / Preclinical]
Brockmann C (2026). [PMID: 40616365](https://pubmed.ncbi.nlm.nih.gov/40616365/). *Acta Ophthalmol*. [Epidemiology / Natural History]
Data assembled from 7 of 12 sources · Last updated Sep 20, 2026, 3:37 PM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center