14 Plate Book
Ishihara®Test Charts are a simple and accurate method for discovering congenital color blindness and red-green blindness, each in two forms, complete and incomplete.
The 14 Plate Book includes four special plates for tests to determine the kind and degree of defect in color vision. Color plates are encased in specially designed album-type books for ease of handling. Detailed instructions included.
The full test consists of 38 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 books are printed in Japan and are protected by international copyright.