6 doctors weighed in:

How do people figure out that they're color blind?

6 doctors weighed in
Dr. Richard Bensinger
Ophthalmology
3 doctors agree

In brief: Comparison with peer

They usually discover this when they are in a situation in which color choice is necessary and they notice their peers making choices difficult or impossible for them. This usually occurs in school such as when picking crayons to color a picture or using colored papers and picking the wrong color for a certain task.
Then they can be formally tested to determine the actual type.

In brief: Comparison with peer

They usually discover this when they are in a situation in which color choice is necessary and they notice their peers making choices difficult or impossible for them. This usually occurs in school such as when picking crayons to color a picture or using colored papers and picking the wrong color for a certain task.
Then they can be formally tested to determine the actual type.
Dr. Richard Bensinger
Dr. Richard Bensinger
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Dr. Mary Efremov
Internal Medicine
1 doctor agrees

In brief: Ichehara test

There is a set of color images that help determine that.

In brief: Ichehara test

There is a set of color images that help determine that.
Dr. Mary Efremov
Dr. Mary Efremov
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