Yer thats right,
The test the specialist did was quite different to any test i had before.
He had a "glass test bar" that was made up of prisms - the angle of the prisms increased further down the scale and i think it ranged from 0 - 25. You had to focus on a dot in the distance and then he would put this scale in front of one of your eyes - the further down the scale he went the more the eye "towed" inwards and the harder it was to focus - until a point where your eye who no longer be able to cope and would "give in"! - then you would see TWO dots! - Hence double vision
Anyway - can anyone answer the questions?
Thanks Tom