Some interesting tidbits from Wikipedia...
"Doctor, My Eyes" is a 1972 song written and performed by Jackson Browne and included on his debut album Jackson Browne.
Originally... it was a bleak song...
Then it was set uptempo to 4:4, David Crosby and Graham Nash sang backing vocals and it was a big hit...but what about that original?

There was originally a third verse to the song, but it was not retained when Browne recorded the song for his debut album. The lost verse, however, can be found on circulating bootlegs of the song's original demo.

...OK..this is where I did some homework..a quest to find the bootleg original...
I spent countless $$ hiring the best investigators and internet "experts"..months went by..hard work ..lives were lost..and still nothing..I had to do "something"...so I did a google search:

"bootleg copy of the original Jackson Browne Doctor my eyes"

I hit ENTER..the wheels were spinning somewhere in the internet cloud..massive supercomputers scoured the internet...I got up and got a cup of coffee and scraped the the cheeze-wiz from my chin...dammit..this has to work!
I came back...the computer had already finished its search!:
Buried in the results...on top of page 2:

283,000 results (0.39 seconds)
Jackson Browne (Original Complete Version of "Doctor My ...

https://www.youtube.com/watch?v=AsjjHUK0lzM

Here is the original third verse...

Oh Angel of Darkness
Who asked you to descend
I thought that I would see myself
Just once before the end

Though these days are dark and cold
And my discoveries are old before they've
reached me
Still you see me hanging on

I'm not afraid to let it be
But I don't know what I will see
appear before me
When what light I have is gone

...I recorded the song (added some backing vocals)...
...Time for a shower..my work here is done...Chet