Ishihara Optometry Testing Book 38 Piece Set for Color Vision Deficiency

-Includes four special test plates for determining the type and degree of color vision deficiency. - Using the characteristics in red-green color blindness, blue and yellow appear significantly brighter than red and green.

-Color plates are attached to a specially designed album-type book for easy operation.

-The graphics seen by people with color vision deficiency must be different from those of people with normal color name: Color difference test book

Material: paper

Size: 19*14.8*4cm

Color: as shown

Quantity: 38 plates

Package Contents:

1*Color Difference Test Book

Note:

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