Term Name:	retinal arterial tortuosity
Synonyms:	RATOR, retinal arteriolar tortuosity, retinal hemorrhage with vascular tortuosity, tortuosity of retinal arteries
Definition:	An artery disease characterized by pronounced tortuosity of second- and third-order retinal arteries with normal first-order arteries and venous system that has_material_basis_in heterozygous mutation in the COL4A1 gene on chromosome 13q34.
Ontology:	Human Disease [DOID:0111547]   ( DOID:0111547 )