We should not jump to metaphoric and spiritual meanings too quickly else we miss the central message; that central message of a Bible passage is always based on the literal meaning.
John 9 - the story of the healing of the blind man is perfect example of this. Let us examine this story in its simple, literary form:
- V1-6 - Jesus heals the blond man with mud made of saliva
- V7-12 - the crowds are amazed at the healing and confirm his identity
- V13-34 - the teachers and Pharisees are amazed and struggle to understand what has happened because they cannot accept the identity of Jesus. That is, their preconceptions prevented their understanding.
- V35-41 - Jesus finds the man and draws a spiritual lesson from all this about spiritual blindness from which the overhearing Pharisees are offended.
Thus, the early part of this story should be read simply and literally. "My eyes" in the Greek is part of a phrase that is literally, "and anointed of me the eyes". That is, the eyes that Jesus anointed were part of the physical body of the man cured of blindness.
Now, none of this changes the general principle stated in Ps 24 that all things belong to God. Indeed, we have a specific instance of this in 1 Cor 6:19, 20 -
Do you not know that your body is a temple of the Holy Spirit who is
in you, whom you have received from God? You are not your own; you
were bought at a price. Therefore glorify God with your body.
Thus, while we are ourselves and have our body parts, even our own bodies ultimately belong to God.