BSIP, LAURENT / SCIENCE PHOTO LIBRARY BSIP, LAURENT / SCIENCE PHOTO LIBRARY
Eye surgery. Surgeon preparing a donor cornea (lower centre) during an operation to replace a diseased cornea. This operation, known as keratoplasty, involves the transplantation or grafting of a cornea from a donor. The cornea is the clear light-focusing membrane over the front of the eye.
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