Most of the process of seeing has nothing to do with the eye. Otherswise, how do you explain what you "see" in your mind, while your eyes are closed? Add to that all of your filters due to expectations, previous experiences, education, training, fears, desires, preferences, etc., and consider how accurate your vision is versus your imagination.
Now, consider a mind free of all filters as described above, what has been called "The Luminous Mind", how much better, more capable would vision be with such a mind?
What Makes an Elder? :
A head of gray hairs doesn't mean one's an elder. Advanced in years, one's called an old fool.
But one in whom there is truth, restraint, rectitude, gentleness,self-control, he's called an elder, his impurities disgorged, enlightened.
-Dhammpada, 19, translated by Thanissaro Bhikkhu.