title: [Histopathological study on the pathogenesis of retinal cotton wool spot].
mesh_terms: D000368:Aged; D001157:Arterial Occlusive Diseases / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D012160:Retina / Q000648:ultrastructure*