Does anybody know about colour blindness?
It’s hard to find information about this! I found an excerpt from a book on Amazon.com which says the military in the United Kingdom classifies color blindness as follows: CP1: Superior color vision CP2: Normal color vision CP3: Slight color deficiency CP4: Moderate color deficiency CP5: Severe color deficiency These are based on a person’s score on one or more standard color vision tests, such as the Holmes-Wright and Ishihara tests.
