title: Acute choroidal ischaemia.
abstract: Some of the factors influencing the site, extent, and appearance of acute choroidal ischaemic lesions are considered. Retrograde flow of venous blood (with its high oxygen content) into the area with choroidal artery occlusion seems to exercise a certain protective influence against ischaemic insults to the choroid.
mesh_terms: D000328:Adult; D000368:Aged; D000818:Animals; D002829:Choroid / Q000098:blood supply* / Q000473:pathology; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D007511:Ischemia / Q000175:diagnosis / Q000209:etiology*; D008253:Macaca mulatta; D008297:Male; D008875:Middle Aged; D010100:Oxygen / Q000097:blood
chemical_list: D010100:Oxygen