divetosavemylife
I was in a kind of similar issue as yours when inwent for my UK CAA medical, the thing was that they fount that i had a latent squint in my eye wich i wasn't aware of. They sent me to an opthalmologist who failed me because my eye deviation was too large and he tought that when i will be 50 years old there will be a 20% chance that i will start to develop symptoms of Double Vision (Wich is the risk with the squint) but at the moment i nevere experienced double vision in my life and according to UK CAA regulations if i didn't had double vision i should have passed my class 1 even if i was over the limits as long as you don't see double tht should not be a problem.
I appealed straight after the wrong decision of the Opthalmologist and i got my medical 6 month later.
So you will be fine too don't lose hope as far as i know new zeland class 1 medical standards are pretty much the same to the uk caa in the squint section. (i might be wrong aswell)