Hello,
I'm going through the same process as you right now and struggling with a lot of delays from my GP and neurosurgeon in gathering evidence.
I have partial quadrantanopia in the upper left after a subarachnoid haemorrhage 15 years ago, since fully treated and stable. I failed the visual field test last month after passing it twice before. Best of luck to you and perservere!
I wanted to ask Johnnie and Tina, as this is the most recently used thread, when you had your licence reinstated through exceptional circumstances, were you given a 10 year licence or a short term medical licence? I don't want to have to go through this whole process again in another 1-3 years.