Aloha717200 From United States of America, joined Aug 2003, 4474 posts, RR: 15
Reply 2, posted (10 years 1 week 4 days 14 hours ago) and read 810 times:
I didn't click the link but I had the "dot test" when I went in for my aviation physical.
Turns out I'm partly colourblind...can't discern the numbers within the dots very well at all. Very slight colour shade differences are undetectable to me, mostly on greens and blues. That would explain why dark blue to me always looked exactly the same as purple, I used to get corrected a lot for saying something was "purple" when it was actually dark blue. I've learned to tell the difference since though, not by shade but by darkness.
It was kinda surprising...my favourite colour is blue. Go figure.
JGPH1A From , joined Dec 1969, posts, RR:
Reply 3, posted (10 years 1 week 4 days 1 hour ago) and read 775 times:
This is the same test I took when I was inducted into the SAAF during national service - I stood there staring and said, "What am I looking for" - reply "Read out the number you see" - me "What number ?".
I am very colourblind, I can only see the first one.