Hi All - I would recommend doing just that, downloading the requirements and taking them along to your optician. I did that a few years ago (a bit soon as I was not in the position to go ahead with it at the time), he did refer me to a specialist and he tested everything including ocular muscle balance, his letter stated "...showed orthophoria for distance and 6 prism dioptres of esophoria at near. The esophoria at near was fully compensated and as such is most unlikely to give rise to any visual difficulties or symptoms", now that was a few years ago, do these things get worse, I shall ask tomorrow. The CAA said that I was probably born with it and it would not deteriorate.
One other thing the CAA guy did mention (have I said this already...?) was for me to do everything here apart from the CPL, then go to another state and complete there (making sure beforehand that I do pass the medical there). Can this be done? Sit all the JAA exams here, the JAA IR, ME, night etc, then go to say Canada and do the CPL? As I said, this was his suggestion.