PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY
Eye examination. Close-up of the eye of a patient being examined with a retinal camera during an angiography examination. Coloured chemicals have been injected into the patient's blood vessels. Filters on the camera, and magnifying lenses, allow the doctor to observe these coloured chemicals in the blood vessels of the retina, helping to diagnose disorders. The retina is the light-sensitive film at the back of the eye.
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