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  Homepage > Diagnostics > Misc >

  Ishihara Test Chart Books, for Color Deficiency
Ishihara Test Chart Books, for Color Deficiency
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List Price: $217.82
Our Price: $148.50
You save $69.32!

MFG: Graham-Field
Shipping: Priced in cart
Delivery Estimate:
1 - 2 Business Days*


Availability: In Stock
CHS ID: 1257

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Description

 
Accepted by leading authorities as a simple and accurate method for discovering congenital color blindness and red-green blindness, each in two forms, complete and incomplete. Includes four special plates for tests to determine the kind and degree of defect in color vision. Makes use of the peculiarity that in red-green blindness, blue and yellow appear remarkably bright compared with red and green. Color plates encased in specially designed album-type books for ease of handling. Detailed instructions included.

Features

  • Consist 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 may be clear after fewer plates.


  • 1 Each / Each
    Part Number(s):

    • 1257 - 10 Plate Book (Unlettered Persons and Children) - $148.50
    • 1254 - 14 Plate Book (Concised Edition) - $159.30
    • 1255 - 24 Plate Book (Abridged Edition) - $232.20
    • 1256 - 38 Plate Book (Complete Edition) - $253.80

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