Mondo Description Mucolipidosis type IV (ML IV) is a lysosomal storage disease characterised clinically by psychomotor retardation and visual abnormalities including corneal clouding, retinal degeneration, or strabismus.

Uniprot Description An autosomal recessive lysosomal storage disorder characterized by severe psychomotor retardation and ophthalmologic abnormalities, including corneal opacity, retinal degeneration and strabismus. Storage bodies of lipids and water-soluble substances are seen by electron microscopy in almost every cell type of the patients. Most patients are unable to speak or walk independently and reach a maximal developmental level of 1-2 years. All patients have constitutive achlorhydia associated with a secondary elevation of serum gastrin levels.

Disease Ontology Description A mucolipidosis that is characterized by delayed development and vision impairment that worsens over time.