Description
24 Plate book
Ishihara Colourblind Book 24 Plate is a colour vision test, designed to produce accurate test results to determine colour blindness and its severity also. This book is the best and the most accurate way of diagnosing colour blindness as colour reproduction may vary to an extent on computer monitors. The test involves toggling of a number of coloured plates with random patterns. Within the pattern are dots, which form a number or a shape that is clearly visible to those with normal colour vision and invisible or difficult to see to those with colour blindness.
