SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY SOVEREIGN, ISM / SCIENCE PHOTO LIBRARY
Angiogram (X-ray) of the inner lining of the right eye of a patient, showing a healthy retina with its blood vessels (retinal arteries and veins). The optic disc (centre right) is where blood vessels emerge and is the point where the optic nerve leaves the eyeball. At centre is the dark region of the macula lutea, an area free of large blood vessels where the fovea (area of best sight) is found.
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