PAUL PARKER / SCIENCE PHOTO LIBRARY PAUL PARKER / SCIENCE PHOTO LIBRARY
Macula degeneration. Ophthalmoscope view of the retina of a patient's eye, showing disciform macula degeneration. At centre right is a large disc-shaped discoloured area covering the macula, the part of the retina responsible for acuity of vision. Retinal cells responsible for detecting images of light are destroyed and there may be breakthrough to the choroid layer beneath. At right is the yellow optic disc where blood vessels and the optic nerve enter the eye. Macula degeneration can occur due to trauma, but most commonly is a progressive disorder in the elderly. The effect is loss of central vision. Laser treat- ment may be successful if diagnosed early.
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