Many thanks for all the replies, that's the kind of info. I'm wanting to know and it all also seems very re-assuring.

I'm long sighted so if there's a chance of full 20-20 vision that'd be great, although because my face has 'grown' to suit my specs., I'll guess I'd need to keep wearing some with plain lenses to look like 'me'. I was a really bonny looking lad before wearing them. :^O

I work as a site cleaner and drive to and from work every day, although there is a bus service which is good enough for short term use if needed after each op.. So, what length of time would I need off work, if any other than the day of treatment, after each op. and would it be better to avoid driving over the period of both ops., which I gather could be several weeks? Maybe getting a new lens for my specs. after the first op. would give me a chance of driving until the second one? Putting eye drops in at work wouldn't be a problem.