I believe, Father Steve, that the modifier "un" has been abused by more important people than medical people and Bruce Springsteen. The wordsmith "Sonny Boy" Williamson recorded these lyrics in mid-century Memphis in the song - UNSEEING EYE...

That unseeing eye, reminds me of a midnight dream.
It reminds me of somebody, that I have never seen.

Boys you had better be careful about what you might say or do.
You had better be careful boys about what you say or do.
That Unseeing Eye is always watching you.
Seems like you don't care about about places you go
Seems like you don't care what you say or do
But that Unseeing eye is WATCHING YOU.