I used to suffer from kc, fixed back in the eighties by corneal grafting, but there is another treatment these days - there was a thread about this a few months ago. I'll try to find it for you...
Edited to add link to previous thread:
http://www.pprune.org/forums/showthr...ht=keratoconus
In fact, use of the Search facility has turned up a surprising number of other kc threads/sufferers on PpRuNe, some with medical/licence issues...give it a try!