SPUTNIK / SCIENCE PHOTO LIBRARY SPUTNIK / SCIENCE PHOTO LIBRARY
Eye lens surgery. Surgical tools being used to remove the lens from the eye of a patient with a cataract. Retractors have been used to pull back the eyelids. A cataract is an abnormal cloudy and opaque area that can form in the lens of an eye. The condition will lead to blindness unless it is treated. A cataract operation involves cutting the cornea (at the front of the eye), removing the cloudy lens, and replacing it with a plastic fixed-focus lens. This operation is being carried out at the Samara Ophthalmology Clinic. Photographed in 2006, in Samara, Russia.
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