At my initial Class 1, I sat in the waiting area next to a really nice young guy, who told me all about how his life’s ambition was to be an airline pilot. His only worry was that his vision might be a bit marginal.
Sure enough, he failed on his eyesight and left the building with commiserations, a class 2 medical, and a £400 hole in his wallet.
Do yourself a big favour; print the class 1 eyesight requirements off the CAA website, take them to an optician and get a £10 eye test. You will then have a pretty good idea whether your eyesight is up to scratch – if there is any doubt, I believe you can discuss your prescription with the CAA’s medical section before applying for the medical. It’s got to be better than forking out hundreds of pounds and crossing your fingers.