Ooops

Mrs T and I both suffered similar misfortunes on holiday, we both had a lens fall out of our specs. In my case this wasn't a great problem as they were only for reading and I had a spare pair in my luggage. Mrs T, on the other hand, really needs hers and had only the one pair. Luckily we found an optician almost at the start of first street that we tried.
The repair of mine waited till we returned (and was cheaper).