Friday, 25 April 2014

Ishihara Clues




Reads first 7 plates (except “12”) incorrectly and unable to read the rest: red-green deficiency
Reads “26” as 6 and “42 as 2: protan defect
Reads “26 as 2 and “42 as 4: deutan defect


Remember Dhaval Patel J: from 26 & 42, if one reads first letter correctly, its Deutan, if second letter correctly, its Protan. (D for first and P for second. Think about it once)

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