IAN BODDY / SCIENCE PHOTO LIBRARY IAN BODDY / SCIENCE PHOTO LIBRARY
Eye surgery. Image 1 of 3. During the operation the eye is held open by a metal speculum (upper left). This is corrective laser surgery. Part of the cornea (front part of the eye) is removed, allowing access to the inner layers of the cornea. A laser is then be used to alter the shape of the cornea. The removed part of the cornea is then replaced. This process can be used to treat myopia (short-sightedness) and other focusing defects. For a sequence showing the removal of the outer part of the cornea, see images M570/143-145.
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