The apple of your eye means a particular preference, or a loved one; the object of somebody's affections. So it means something very dear to you.
The idiom "apple of your eye" comes from the Old Testament of The Bible. It is in 4 verses, Deuteronomy 32:10, Psalm 17:8, Proverbs 7:2, and Zechariah 2:8.
"We all know that she is the apple of your eye."
This would mean that the female in this expression is the person you desire. The pupil is also known as the apple of the eye -- it is the source of focus; thus when someone is the apple of the eye, they are the focus, the center.
I do believe you heard the idiom wrong. It's "apple of one's eyes." See the link below for the meaning.
Apple - no mind - thus no meaning.
Its an apple. it has no meaning.
Tamil same apple
You are apple of my eyes.
think you misheard...its apple of my eye
The Tamil word for Apple is araththi pazham.அர‌த்திப்ப‌ழ‌ம்
It's literal meaning is a seeded apple.
Eyes Beauty (Gold of Eyes)
The fruit is spelled "apple", and the computer brand Apple. The word meaning can do is "able".
Vinegar is acidic. It will burn any mucous membranes, including the eyes.
it means you've got a rotten apple!