Applicants for class 1 medical certificate with a clinical diagnosis of Keratoconus may be assessed
as fit subject to a satisfactory examination by an ophthalmologist.
http://hub.easa.europa.eu/crt/get-fi...202008-17c.pdf
EASA is less strict with keratoconus then JAA... I also have Keratoconus and got rejected for a class 1 with 10/10 vision, quite frustrating.