Dry One's Eyes Meaning

(idiomatic) To cease crying.

Example: 1900, L. Frank Baum, The Wonderful Wizard of Oz
  "Be careful!" cried the green girl. "The tears will fall on your green silk gown and spot it."
  So Dorothy dried her eyes and said, "I suppose we must try it; but I am sure I do not want to kill anybody, even to see Aunt Em again."