Originally published in China in 1993, this text contains color plates for use in testing red, green, yellow, and blue (violet) color vision, and for classifying an individual's color weakness into three degrees, either strong, medium, or mild. Designed for use in the clinical setting, the 66 plates were developed based on the theory of color vision and the theory of complementary color, and include images for testing the general population as well as a selection of images for use with children and illiterates. The introductory text preceding the plates provides background information on color vision, types of color blindness, testing for the condition, and instructions on how to use the manual. The authors' credentials are not stated. No subject index.

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We sell Brand New University Textbooks to students at very affordable prices. All orders are shipped by Trackable methods only and the tracking number is available within 48 hours of placing the order. We also offer free shipping to USA, Canada and Europe and lowest shipping charges in other countries. We have multiple warehouses to save on the transit time.

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SMASS Group LLC
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We sell Brand New Textbooks requied for studies in the Univesity. We have been in this business for the past 14 years and we know how to keep our customers happy and satisfies by providing them the required course material and the most affordable prices.

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