ZEPHYR / SCIENCE PHOTO LIBRARY ZEPHYR / SCIENCE PHOTO LIBRARY
Retinal detachment. Coloured axial magnetic resonance imaging (MRI) scan through the brain and eyes of a 57-year-old woman with the beginnings of a detached retina in her left eye (upper right). This detachment is seen as a black area at the back of the eye, which is not present in the other eye. The retina is the light-sensitive layer at the back of the eye. Retinal detachment occurs when fluid accumulates below the retina. The condition may be secondary to an inflammation or tumour. It may require surgical treatment.
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