GIMA Ishihara Colour Vision Test Plates Set & Metal Box

Ishihara colour vision test plates for adults.
Officially licensed Ishihara plates produced by leading Italian medical devices and products manufacturer GIMA.Single plates (11.5 cm x 11.0 cm) packed in original metal box (13.5 cm x 11.5 cm x 2.3 cm).Multilingual instructions in Italian, English, French, German, Spanish, Portuguese, Greek, and Arabic.Description of plates:Any subject, whether normal or deficient in color vision, will read the numbers \"15\" correctly. This plate is mainly used for preliminary explanation of the test process to the subjects.Normal subjects will read \"6\" and those with red-green deficiencies can only see a dot inside \"6\".Normal subjects will read \"5\" and those with red-green deficiencies can only see a dot inside \"5\".Normal subjects will read \"10\" read and those with red-green deficiencies can only see #0.Normal subjects will read #23 and those with red-green deficiencies can only see #3.Normal subjects will read #62 and those with red-green deficiencies can only see #2.Normal subjects will read #31 and those with red-green deficiencies can only see #1.Normal subjects read #53 and those with red-green deficiencies can only see #3.Correctly decipherable by normal subjects, but illegible or difficult to read for those with red-green deficiencies.Correctly decipherable by normal subjects, but illegible or difficult to read by those with red-green deficiencies.Correctly decipherable by normal subjects, but illegible or difficult to read by those with red-green deficiencies.Normal subjects and those with mild red-green deficiencies see the digits \"51\", but protanopia and strong protanomalia read only \"1\", and deuteranopia and strong deuteranomaly only \"5\".Normal subjects and those with mild red-green deficiencies see the digits \"36\", but protanopia and strong protanomaly read only \"6\", and deuteranopia and strong deuteranomaly only \"3\".When tracing the squiggly lines between the two X\'s, the normal line follows the purple and red lines. In protanopia and strong protanomaly, only the purple line is traced, and in mild protanomaly, both lines are traced, but the purple line is easier to follow. In deuteranopia and strong deuteranomaly, only the red line is traced, and in mild deuteranomaly, both lines are traced, but the red line is easier to follow.When tracing the squiggly line between the two X\'s, both normal subjects and subjects with color vision deficiencies can trace the line.