Everything depends on if you can correct your vision to 100%, even with 11 dioptres there is a chance to get a soda if you reach 100% with correction.
If you can't reach 100% you are in trouble, but it's still possible to get the soda.
I have only 3 Dioptres on one eye, but it can only be corrected to 95%(Amblyophia). They still gave me a soda for a first class medical.
Call the FAA in Oklahoma, they can help you setting up a medical check flight. I would also contact a FAA medical examiner first, there are plenty in Europe.
Good luck!!