The eye does not tell the world what it is. In relation to the world the eye is like faith in relation to God: it receives. God gives beauty, the eye receives beauty. God gives truth, faith receives truth.
If the eye is good, the whole body is full of light. If the eye is bad, the whole body is full of darkness.
We do not tell blind people to “look harder.” Instead we heal the blind with the word of God. God’s word of promise creates faith and makes the blind to see.
Through the gift of the eye we see the Giver of faith, the Creator of the eye, the Revelator of truth, the Light itself, Truth itself, Jesus.