A hearty welcome Mr. Mark!
I've drawn a total blank to this, never realized how many eyes are in songs.....however, have noticed through researching this that lyrics writers, if they used "eyes" once... they used it in MANY other songs they wrote....or if they used the word "feeling" it likewise was found in most of the their other songs were touch oriented, or if they used "hear" likewise most other poems had sound references. It appears that the writers are sensory orientated to predominently one sensation.
Too bad about the lose of your mind....however, this place should help renew your mental health.