Hi Harrison,
Just wanted to give you a bit of encouragement, as I sense you're feeling frustrated...
Keep on with the advice you're given above, and with Dr. Frye at the helm with the right meds I'm hopeful your little guy will pull through. It takes time and patience.
I bought my first pair of red-eyes the summer of 2012 (from a big chain pet store (to remain un-named ), one died shortly after. The survivor was doing well for a month or so, then when I was changing paper towels at the bottom of his tank I accidentally scratched him pretty bad on the eye and side of his body with a vine (sand paper type, don't use those anymore!). Needless to say, I felt absolutely terrible.
This is clearly not what you're going through, but my purpose in telling you this story is so you get a sense of the healing process red-eyes go through...
With the help of Lynn and Heatheranne, and Dr. Frye via email, my red-eye survived.
It took about 6 weeks of SSD cream, metro drops, and pedialyte drops on his back, and when he didn't eat for several days, once of dropping a cricket in his mouth while he was shedding to keep him going..
It was very frustrating to see very little improvement through those first few weeks, and seeing him get week and appearing as though he wouldn't make it. But he is still here today (nearly 2 years!).
So keep up with what you're doing, you're doing great. Like Andaroo said, Red-eyes are hit and miss, but you are doing the very best for him right now...
Good luck