| Namespace | disease_ontology | Obsolete | false |
| description | A retinal degeneration that is characterized by crystals in the cornea, shiny deposits on the retina and progressive atrophy of the retina, choriocapillaris and choroid, has_material_basis_in autosomal recessive inheritance of homozygous or compound heterozygous mutation in the CYP4V2 gene on chromosome 4q35. |
