Editing Ishihara test (section)

==Plates==
The plates make up several different test designs:<ref>{{cite web|last=Fluck|first=Daniel|title=Color Blindness Tests|url=http://www.color-blindness.com/2010/03/23/color-blindness-tests/|work=Colblinder|date=23 March 2010 |access-date=3 December 2013}}</ref>
;Demonstration plates: (Plate number one, typically the numeral "12"); designed to be visible by all subjects, whether normal or color vision deficient.  For demonstration purposes only, and usually not considered in making a score for screening purposes.
;Transformation plates: Individuals with color vision deficiency should see a different figure from individuals with normal color vision.
;Vanishing plates: Only individuals with normal color vision could recognize the figure.
;Hidden digit plates: Only individuals with color vision deficiency could recognize the figure.
;Diagnostic plates: Intended to determine the type of color vision deficiency ([[protanopia]] or [[deuteranopia]]) and the severity of it.
;Tracing plates: Instead of reading a number, subjects are asked to trace a visible line across the plate.<ref name="ishihara"/>

<gallery>
File:Ishihara_1.svg|Ishihara Plate No. 1 (12)
File:Ishihara 11.PNG|Ishihara Plate No. 13 (6)
File:Ishihara 23.PNG|Ishihara Plate No. 23 (42)
File:Ishihara 19.PNG|Ishihara Plate No. 19 (hidden 2)
</gallery>

The numbering and rotation of plates differs between the shortened diagnostic versions of the test and the full 38-plate test.