My wife’s father and both of her children are red-green color deficient. Color blind is what it used to be called. She first discovered it in her children when they would come home from school with their crayon drawings and all the trees in their pictures were always colored brown. When they look at things that are red or green they see them in tones of brown.
One color they see really well is yellow. My father-in-law has two yellow cars. He says it’s easy to find his ride in a parking lot where all the cars look the same.
My post from the other day about colored contact lenses reminded me of those blue blocker sunglasses that make everything look yellow. They are kind of cool because they make everything look brighter when it’s getting dark, but I couldn’t imagine what it would be like to live life missing a good portion of the light spectrum.
Another possible problem is that maybe people who are red-green color deficient can’t watch the Red Green Show from Canada.