Believe One's Eyes Meaning

(idiomatic) To believe that something which one directly sees is truly the case.

Example: 1884, Edward Payson Roe, Nature's Serial Story, ch. 59:
  [H]e could scarcely believe his eyes as she appeared on the floor unsurpassed in beauty and grace, her favor sought by all. Was that the simple girl who . . . had leaned against his shoulder?
1914, Zane Grey, Light of the Western Stars, ch. 3:
  She was so amazed at the change in him that she could not believe her eyes.
2004 July 5, "Charisteas: We are the Best in Europe," Sofia News Agency (Bulgaria) (retrieved 27 August 2013):
  Millions of Greeks worldwide erupted in joyful celebration, hardly believing their eyes after Greece beat hosts Portugal in the Euro 2004 finals.