Unfortunately hearing loss is more common in AS patients than the general population
- http://oto.sagepub.com/content/145/2_suppl/P211.3.short
- http://journals.lww.com/md-journal/Abstr...nts_With.2.aspx
Whilst we can generalise and say that AS patients on average have worse hearing than controls, each individual is a unique case. Some people with AS experience minor hearing loss and others don't have any hearing problems at all. For those that do it seems to be mainly higher frequencies >10khz that aren't that important anyway.