Talk with an AME and see just how many pilots can't really pass the given test. If really enforced to the "T", I don't think at least half of the male pilot population would ever get their medical, at least based on what my AME has told me. Supposedly I have some red/green deficiency. I've always been able to pass the test or do "well enough", but some of the numbers I just can't see (and yes, I know there are sometimes ones with nothing/if you see something it's wrong). I can always see the different colors, but sometimes I have to "trace it out" to get to the right one, which seems odd, but I don't know if they're supposed to be more distinctive or what. With a variety of other tests (alternative test in the Army) I've done fine, and I've never had any problems in real life discerning between reds and greens, but I just think the current test is ridiculous, and there is a lot of criticism of it for other reasons (inconsistent due to lighting levels, types of lighting, etc) . It's ridiculous because most people tend to agree that the level of color definition required by the test is not required for anything a pilot does.