Graham Field® Ishihara® Test Chart Book for Color Deficiency, 14 Plates

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$269.46

In stock

SKU

02-70-1254

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Details

Ishihara^® test charts are 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. The test makes use of the peculiarity that in red-green blindness, blue and yellow appear remarkably bright compared with red and green.

(14) color plates encased in specially-designed album-type book for ease of handling
Includes (4) special plates for tests to determine the type and degree of defect in color vision
Detailed instructions included

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