Well how come the AOP says otherwise, when it has come directly from the forces?

Please answer fully rather than just a brief sentence.

In the navy..

I've seen requirements on AOP.org.uk and emailed them. Apparently they said that they get the standards directly from the forces so they must be true?

So what standard of eyesight do I need to be a pilot - and what is the difference between aircrew and a pilot?

Thanks.