Hi Lee
I had the same issue - I had a huge manifest squint but after assessment in Gatwick I was adjudged to be ok fit to fly with it however, because my prescription was so high they wouldnt give me a class 2 - they said I could appeal it and i might get it, fortunately the South African CAA were ok with this and I'm getting my class 2 with them so its off to SA with me later this year.
Back to the squint - I was suprised that the specialist in Gatwick passed my squint as it was way outside the limits - I've had it so long he said the chances of me getting double vision were ZERO! Thats the safety issue at hand. Go see him, nice chap, it'll cost you £49.
For more info - do a search on this forum with 'squint'
Good luck with it!
Wingz
