nomorecatering
No, unfortunately not. Lenses that correct a colour defect for red/ greed modify the perception for other colours. Thats the excuse and they're sticking to it. Having said that the argument doesn't stack up really when you consider that the wearing of corrective lenses for distance or reading comes at the expense of near vision or peripheral vision.
After nearly 30 years of flying I haven't once had reason to work out which way an aircraft is heading by reference to its wing lights. Its all about the PAPI, if there was no such beast we would be further down the track. It would be an interesting stat to find out how many PAPI related incidents have occurred worldwide and break them down into two groups, "colour normals" Vs "colour defectives".
We know the outcome of course they would say there are no colour defectives so therefore no colour defective stats. What we really need is funding for research into what that stat would look like if there were the same amount of colour defectives. At the end of the day it looks like the employers are taking the initiative of culling out the defectives and as such the future "difficult to see it is"!
SN