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Ishihara Book - 14 Plate

 
Ishihara Book - 14 Plate
ITEM: #61-1254
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Simple and accurate method for discovering congenital color blindness and red-green blindness, each in two forms, complete and incomplete. Makes use of the peculiarity that in red-green blindness, blue and yellow appear remarkably bright compared with red and green.

  • Includes four special plates for tests to determine the kind and degree of defect in color vision
  • Color plates encased in specially designed album-type books for ease of handling