What is the Meaning of the Expression
to NOT BELIEVE one’s EYES (or EARS)?
This expression can take several forms, such as:
I DON’T BELIEVE MY EYES (or EARS)
I CAN’T BELIEVE MY EYES (or EARS)
I COULDN’T BELIEVE MY EYES (or EARS)
Note: When you change the subject, remember to change the possessive adjective to match.
He couldn’t believe his eyes. / She couldn’t believe her ears.
to be amazed, or shocked, by what you see
This can be used for either positive or a negative experiences.
Dave couldn’t believe his eyes. He was witnessing a robbery.