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vendingmachine commented on the word Ishihara test
The Ishihara test is a color perception test for red-green color deficiencies. It was named after its designer, Dr. Shinobu Ishihara, a professor at the University of Tokyo, who first published his tests in 1917.
https://en.wikipedia.org/wiki/Ishihara_test
March 28, 2016
bilby commented on the word Ishihara test
I have lemons from my lemon tree, and they're really nice, but they don't seem very yellow.
So, it is possible that they are deficient in yellow.
Or my vision is.
March 29, 2016