KING'S COLLEGE LONDON / SCIENCE PHOTO LIBRARY KING'S COLLEGE LONDON / SCIENCE PHOTO LIBRARY
Fields of vision. At top left is a bird's eye, at centre left is a simple eye and at bottom left is a fly's eye. At right the differences between a concave (top) and faceted (bottom) retina are shown. Artwork from 'Contributions to the Physiology of Vision' (1834) by the German physician Carl Moritz Nicolaus Bartels (1800-1835).
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