<<Disclaimer: Verify this information before applying it to your situation.>>

Color blindness (listmates were wondering if it's potentially
celiac-related)
can be diagnosed through the "Ishi Hara" (ee-she  ha ra) test (that's
the name of the person who invented the test).... it's the circles of
color that highlight different color  shades.... if you have color
blindness you will see a different pattern of numbers within the circles
then a person who does not.

They had these at a science fair & my husband's color blindness was real
clear- he was seeing different numbers then the rest of us were!

It runs more predominently in males.

Looking at paint swatches together is always loads of fun!

fran