Poor dear thing. My heart just breaks for her and you. I've taken in my fair share of rescues, and it's not an easy thing to do. It may be wrong of me to say this, but I would tell them she got sick and died suddenly, so sorry! And just keep her.
She is such a lovely thing to live such an awful life. I know we can't save them all, but it doesn't keep me from wanting to try!
Bottom line now is: stable temps, tight hides, humidity, humidity, humidity, and just let her eyes alone until she sheds good a time or two. I have a lovely rescue who is blind in one eye, because the owners were convinced she had a stuck eyecap. It turns out, they pulled the outer lens of her eye off! So yeah, I'm not a big advocate of messing with eyecaps.
Feed her small for now, it won't hurt her. You can even put her on a 5 day schedule for now if you feed small.
Make sure she has really snug hides. I mean so small you think no way she can fit in there, because that is what she will prefer. I have a few now who's hides are so small they look like they are wearing a hat, but I'm not allowed to change them! If I do, I get all kinds of grumpiness and food refusals. So for now, hat hides it is! Be patient with the poor love, and she'll come around in no time. And whatever decision you make about her care, I am glad you did what you did.
Gale