Three presentations of monocular vision loss

Optometry : Journal of the American Optometric Association
Melissa E Trego, Jean Marie Pagani

Abstract

Carotid artery disease is estimated to affect 30% of persons older than 50. Risk factors include hypertension, cigarette smoking, hyperlipidemia and diabetes mellitus. Symptoms ascribed to carotid artery lesions with stenosis of the artery or plaque formation include monocular vision loss and transient ischemic attacks. Patients can present with transient monocular vision loss as their initial symptom. Three patients from a geriatric clinic in Wilmington, Delaware presented with different complaints of vision loss with similar overall outcomes. Patient A was an 87-year-old woman who presented with dimming of vision on extreme left head turn. Dilated fundus examination found a retinal arterial emboli in the left eye (O.S.). Carotid duplex examination found 50% to 79% left internal carotid stenosis with no hemodynamic stenosis of the right internal carotid. Patient B was a 78-year-old woman who presented with a right superior altitudinal defect and transient vision loss in the right eye. Dilated fundus examination found retinal arterial emboli in the right eye (O.D.). Carotid duplex examination found 50% to 79% carotid stenosis in both the left and right internal carotids. Patient C was an 84-year-old man who complained of a supe...Continue Reading

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