On Mon, 26 Oct 2009 07:55:24 -0700 (PDT)
Paul Corfield wrote:
I am colour blind but do not have any issue with distinguishing
between pink and yellow. It may affect some people but red / green is
the most prevalent form of colour blindness. If they had been green
and brown then it might well be a nightmare (for me at least). To be
fair the leaflets do list where they are so people are being told
where to find the specific route validators as opposed to any other
sort.

Just out of curiosity , can you see red traffic lights? Is there any sort
of glow from the red bulb or is it just black to you?

I remember reading somewhere that people who are colourblind to red would
be actually blind if taken into a photographic dark room because they can't
see the red light used and the rods in the eye arn't sensitive to that
wavelength. Only the red codes which they don't have.

B2003