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The Ishihara Colour Deficiency Test is ideal for commercial/ industrial colour screening for protan and dutan defects.

Patients must identify numbers or patterns formed in a matrix of small coloured dots varying in colour and intensity (pseudo-ischromatic plates).

The third type is the 14-plate(latest)edition. On the average, charts of highest accuracy were selected from the 38 plate(Complete) Edition to conduct minimum examinations of color deficiency.

Color plates encased in specially designed album-type books for ease of handling. Detailed instructions included.

Ishihara Colour Blindness Book 14 Plates with User Manual. 14 Plates Latest EDITION. The Ishihara Colour Deficiency Test is ideal for commercial Industrial colour screening for protan and deutan defects.