Wiktionary
n. 1 keratoconjunctivitis sicca, an eye disease caused by decreased tear production. 2 (context idiomatic English) An eye which is not crying, i.e. someone emotionally unmoved.
Usage examples of "dry eye".
And the Elf, he spoke poetry, some so fierce as to make your blood boil, and other so sad that there weren't a dry eye in the house.
And lately with all that's happened in racial matters, hopeful and horrendous, I've come to think there was one simple reason--one reason only--why Simon could ask for Palmer's pardon and then turn up with his dry eye-socket three weeks later and recommence work as if nothing had happened.
I don't think that there was a dry eye in the place, and even the crusty old duke was in tears.
It lasted three full days, and when it was over there was not a dry eye or a full bottle on the whole Station of Doom.
There was not a dry eye in the courtyard when I finished, and mine own included.