MARK THOMAS / SCIENCE PHOTO LIBRARY MARK THOMAS / SCIENCE PHOTO LIBRARY
Eye examination. Ophthalmologist (left) and patient looking at an image of the patient's fundus on a screen. The fundus is the interior surface of the eye. This image was taken using a fundus camera (grey, left). Images like this are used to check for problems such as detachment of the retina (the light-sensitive membrane at the back of the eye) and glaucoma (high pressure inside the eyeball).
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