@Chak I can't give any information regarding the condition, but I'm sure another Ppruner or even an AME will respond soon on that. What I can say is that, don't give up hope just yet. I've read loads of threads on here and around the web of people failing the initial medical due to exceeding one of the regulations only to appeal and be signed off as fit to fly. I believe the guidelines say that some discretion can be made on a case-by-case basis by the CAA upon appeal. They may likely look at your situation, and with further tests, deem you fit too.You're really not going to know until you proceed with the appeal, so don't loose hope yet. I feel for you when reading this as I was just as nervous for my vision in my initial last month. Good luck and keep us updated!