Description

Ishihara Test Chart Book

The Ishihara Test Chart Book, available in 24 or 38 card books, diagnoses color blindness. By using 4 different types of eye chart plates, the type and degree of color deficiency can be determined. Because a person with color-blindness has trouble seeing red, green, blue, or mixtures of these colors, the Ishihara Test Chart Book includes transformation, vanishing, hidden digit, and diagnostic plates.

• Includes detailed instructions.
• Choose from 24 or 38 plate book.
• Encased in specially designed album-type books for ease of handling.
• Accepted by leading authorities worldwide as a simple and accurate test method Includes four special plates for tests to determine the kind and degree of defect in color vision.