Grafco Ishihara Test Chart Books for Color Deficiency 24 Plate Abridged Edition Book


Ishihara Test Chart Books for Color Deficiency 24 Plate Abridged Edition Book

By Grafco MFG Part #: 1255 SKU: GF1255
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Product Description

The Ishihara color test is a test for color blindness. It was named after its designer, Dr. Shinobu Ishihara (1879-1963), a professor at the University of Tokyo, who first published his tests in 1917. It makes use of the peculiarity that in red-green blindness, blue and yellow appear remarkably bright compared to red and green It consists of a number of colored plates, on each plate is printed a circle made of many different sized dots of slightly different colors, spread in a random manner


  • Within the dot pattern, and differentiated only by color, is a number
  • What, or even if, a number is visible indicates if and what form of color blindness the viewer has
  • The full test consists of thirty-eight plates, but the existence of a deficiency is usually clear after fewer plates
  • The Ishihara Color Charts are accepted by leading authorities worldwide as a simple and accurate test method
  • The color plates are available in an album-type book for ease of handling
  • The books are printed in Japan and are protected by international copyright Graham-Field has been the exclusive North American wholesale distributor of


  • Ishihara Tests for over 30 years

UPC Code: 050948035428

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UPC Code: 050948035428

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