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Venous Stasis Retinopathy is a condition of the retina caused by severely reduced blood flow through the carotid artery in the neck. The condition results in low pressure and insufficient blood flow to the eye, causing poor circulation in the retinal veins.
read more about venous stasis retinopathy ...The primary cause is severe blockage of the carotid artery in the neck, usually due to atherosclerosis (plaque buildup). The blockage causes a severe drop in blood pressure to the ophthalmic artery, which is the blood supply to the eye. This low flow starves the retina of oxygen, causing the veins to appear congested and leading to bleeding and swelling.
Symptoms include temporary episodes of vision loss, often described as a "curtain coming down" over the eye (amaurosis fugax), poor vision in low light, and a dull, aching eye pain. The symptoms signal that the retina is not receiving sufficient oxygen.
Venous Stasis Retinopathy severely impacts vision by causing chronic ischemia (lack of oxygen) in the retina. The low flow leads to microaneurysms (small bulges) and hemorrhages (bleeding) in the retina, resulting in permanent vision loss if the carotid artery is not treated.
Diagnosis involves a comprehensive dilated eye exam. Fluorescein angiography is used to confirm the severe delay in blood filling the retinal vessels. A carotid ultrasound is necessary to measure the blockage in the neck arteries.
The necessary treatment focuses on addressing the severe carotid artery blockage. This involves medical management (statins and anti-platelet drugs) and, often, surgical procedures (endarterectomy or stenting) to clear the plaque from the carotid artery and restore proper blood flow to the eye and brain.
No, this condition signals severe vascular disease in the neck and requires urgent systemic treatment due to the high risk of stroke.
Yes, the blockage in the carotid artery is a leading cause of major strokes.
Yes, the chronic lack of oxygen can cause a characteristic dull, aching pain around the eye.
Seek emergency care for sudden vision loss or "Ocular Angina" (eye pain after light exposure). Venous Stasis Retinopathy is the ocular sign of "Carotid Artery Stenosis." A doctor must perform a carotid ultrasound immediately to check for blood flow blockages to the brain.
AAO. Ocular Ischemic Syndrome (aao.org). 2024.
Mayo Clinic. Carotid Artery Disease (mayoclinic.org). 2024.
Cleveland Clinic. Carotid Stenosis (clevelandclinic.org). 2024.
StatPearls. Ocular Ischemic Syndrome (ncbi.nlm.nih.gov). 2024.