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Features include always present findings: Bone spicule pigmentation of the retina, Nyctalopia, Reduced visual acuity, and Optic disc pallor and others; and common findings: Abnormal flash visual evoked potentials and Attention deficit hyperactivity disorder. 11 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Eyes | 4 | Macular degeneration, Optic disc pallor, Posterior subcapsular cataract |
SCAPER function has not been fully characterized.
Intellectual developmental disorder and retinitis pigmentosa; IDDRP is associated with mutations in the SCAPER gene on chromosome 15.
Genetic testing for SCAPER is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 6 always present features, 2 common features.
No clinical trials have been registered for intellectual developmental disorder and retinitis pigmentosa; IDDRP.
2 publications have been identified in PubMed for intellectual developmental disorder and retinitis pigmentosa; IDDRP. Research spans Review / Meta-Analysis (50%) and Basic Science / Preclinical (50%).
Shamsi MB (2025). [PMID: 40143690](https://pubmed.ncbi.nlm.nih.gov/40143690/). *Curr Med Chem*. [Basic Science / Preclinical]
Manav Yiğit Z (2025). [PMID: 40159802](https://pubmed.ncbi.nlm.nih.gov/40159802/). *Ophthalmic Genet*. [Review / Meta-Analysis]
Data assembled from 5 of 12 sources · Last updated Sep 20, 2026, 5:33 PM UTC
Online Mendelian Inheritance in Man
Genetic and Rare Diseases Info Center
Bones and joints |
1 |
Bone spicule pigmentation of the retina |
Muscles | 1 | Peripapillary atrophy |
Brain and nerves | 1 | Intellectual disability |