Well do you want a career in ears or a career in eyes? That might be somewhere to start!
For healthcare professions like audiology and optometry, if the course is accredited then where you study matters not one jot. The main employers are either going to be the NHS (who don't care) or high street places like Boots and so on (who also don't care if you went to Oxbridge or anywhere else).
Social life at uni is invariably what you make of it. At any university you can have the most outgoing social life possible, and equally you could end up having no social life at all. It's wholly dependent on you and what you do to get involved and make things happen - if you just sit waiting for someone else to arrange social outings and to start conversations then you won't have much of a social life at all, at any uni!