O'Farrell, C M Prognostic value of carotid ultrasound lesion morphology in retinal ischaemia: result of a long term follow up. [electronic resource] - The British journal of ophthalmology Dec 1993 - 781-4 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0007-1161 Standard No.: 10.1136/bjo.77.12.781 doi Subjects--Topical Terms: Carotid Arteries--diagnostic imagingCarotid Stenosis--diagnostic imagingEndarterectomy, CarotidFemaleHumansIschemia--diagnostic imagingMaleMiddle AgedPrognosisRetinal Vessels--diagnostic imagingUltrasonography