Originally Posted by
Coach45
Dan64456 I believe you and I have a very similar color deficiency for I too can sometimes pass the ishihara if the lighting is correct. What are the different tests YOU took and how did they work? Titmus, Telebinocular...etc. I have to renew my first class medical and am opting to take one of the alternate tests.
Hey Coach,
We may be a couple of the extremely rare that don't really have any problems with color vision, but only with passing the tests. Some 'normal' people do get failed by the ishihara.. Either that or we are so close to normal that the only problem we ever would face in the real world is these tests.
When I took the FALANT I had to see the white and the green a few times. They made the white look a lot like the green because it is so dim with the filter they use and naturally anyone gets used to white lights always being brighter than green ones in the real world... Once I seen which ones were wich, I had no problem passing the test.
Also took the anomoloscope with the same doc (not an FAA test, but known to be very accurate). Doctor said at worst I am mild deuteranomoloy. ('M cone' or green cone slightly weak)
I'd recommend the keysone telebinocular... I passed that one with no problem. I had to look really hard for 1 or 2 of the numbers, but nailed them.
Titmus - I couldn't see the numbered plates becuase I think they had the light set way too dim. But the other slide that used the directional E's instead of the numbers I passed on that one as well.
I've messed with a bunch of tests that aren't accepted by the faa as well. Passed most of them.
I hear the Dvorine is a good test for borderline people as well.
Bottom line - in the real world I know for sure I have no problems with primary colors. As someone said before as long as you can see all of the color differences in a rainbow, you will be fine. (Red, Orange, Yellow, Green, Blue, Indigo, Violet)
PM me if you need any more info... And good luck brother. Let us know how it goes.