Description
14 Plate book
Ishihara ColourBlind Book is a simple, yet accurate device to diagnose total colour blindness as well as red-green blindness. The results of this test are accepted by leading authorities. This colour blindness diagnostic book consists of 14 special plates to determine the type and severity of defect in color vision. The colour plates are encased in specially designed, album type book for easy handling. This pack also includes a detailed instructions note. The book comprises hidden numbers and winding lines.
