The shoot was till late at night (ended about 1 AM), and I couldn't stop in the middle to put drops in my eyes. I also had nowhere to put the drops anyway. I had to keep my glasses in my bra when we were shooting, as the costume had no pockets.

We were outside the whole day - we got a few short breaks to take a quick pee and with my costume peeing was quite time-consuming; I didn't have time for anything else.

edit: To correct myself in that it wasn't actually a "quick" pee,and to say "Thank you, Amelia Bloomer".