Just wondering - not to be morbid or rude, but why does a terminal patient need a cataract removed? Yes, quality of life might improve and, personally, I hope her life quality is A+. But if she is terminal...

?
As for why she didn't tell you - who knows? Maybe she forgot or maybe she was so nervous about being admitted to Hospice that she just didn't think of it, didn't understand. Who knows? Maybe it was intentional. No way to know.
Also - how long can she be on Hospice without having to pass on?
Sorry if I sound crude. It's kind of a hard subject, all this dying, limiting care to the terminal people, always having to worry about money.