I'm gutted for you peppl. I have my Class 1 initial coming up in a couple of weeks and I know how I will feel if something I can't do anything about prevents me from flying.
I know we can't change anything but...
If I look up and to the right, I'm looking over the top of my specs and therefore don't have much in the way of useful vision in this area. If I want to look up and to the right, I'll move my head, not my specs.
What difference does it make if, as in this case, someone sees slightly double in this region? You'd think if a candidate has normal vision in the field of view covered by an average pair of specs, it would be acceptable.