Hi Ken
I work in operating theatres, helping with anaesthetics (including eye theatres)
If you are having your cataracts sorted, once you have the 1st one done, you will wonder why you worried.
I have never had one done but I have seen a few hundred! (I even wrote an article on ophthalmic anaesthesia for the Oxford Handbook of Perioperative Practice)
The procedure to numb your eye is very quick, and lets go as far as to say it is 'weird': lots of drops etc.. but just go with it.
As for the actual cataract removal? you just have to lay still for around 15-20 mins while the procedure/operation is carried out. The outcome WILL BE amazing.
Best wishes...
PM me if you want any more advise.