Research Paper
I recommend the above research paper to everyone. I saw the draft about a year ago and this has built upon that.
The paper will give you a good insight into the business of being a CVD and highlights the main issues at stake here.
In essence, the paper says the whole issue needs looking at and a standard test devised. It also says that colour vision is not necessarily linked to safety or the abilility of a person to fly an aircraft.
Well done City University.
G