Chronic ocular ischaemia.

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Abstract
The ocular changes due to chronic ischaemia are described in seven patients, aged between 59 and 77 years, with severe carotid artery disease. Doppler sonography was used to confirm the presence of high-grade arterial stenosis or occlusion in all the patients. The treatment of chronic ocular ischaemia is discussed, including the role of carotid bypass surgery, which is mentioned briefly. Three patients died of cardiovascular or cerebrovascular disease within 6 to 18 months of presentation.