Arteriovenous nicking, fundoscopy

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Fundoscopy image of the retina of the eye showing arteriovenous nicking (in blood vessels down centre right). This is where a retinal venule is compressed by a retinal arteriole that has become stiffened by disease. The walls of the arteriole have also thickened, given them the appearance of a copper wire. Both of these changes are caused by high blood pressure (hypertension) and are a sign that the patient has chronic systemic hypertension.

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Size: 3550px × 3011px
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Photo credit: © ALAN FROHLICHSTEIN/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

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