Posted on October 5, 2015
Ishihara Tests
From researching and looking into the various ways we communicate to partially sighted people, I came across the concept of Ishihara tests. Designed by Professor Shinobu Ishihara, these tests consists of a number of coloured plates, all varying in colour and shape sizes of dots. This test is a colour perception for people with red-green colour deficiencies.
This is an example of one of the Ishihara plates, that would be examined in a test. To most people the 12 would be distinct, however people with colour deficiencies would be unable to distinguish the dots within the plate.
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