tha
Neo
The number of CVD pilots flying in the states would be in the thousands. I personally don't think that ICAO can apply enough pressure to force the FAA to change its stance on CV testing. Australia is similar, I think we only need one other ICAO member state on board and the pressure will be firmly on the UK CAA and ICAO to stop discriminating against those who have a very common disadvantage. We need to make sure that the design of aircraft and aviation infrastructure is such that colour perception is taken out of the equasion. If you think about it we are very close to that situation now.
Colour vision varies under ambient conditions even for those with "normal" colour vision. The manufacturers should be given criteria that the design of aircraft instrumentation must comply with. If they want to see the misreading of colour causing accidents then colour code the flight-deck and take out the raw data. See what happens then.