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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