I agree with your reasoning. No heroic measures... For all I know he's actually in his twenties. He came here as an adult stray many years ago, we've always just guessed at his age.
And I think it's a big issue that he's no longer easy to handle. He's really hostile about being carried around. It scares him. Even getting to the vet would be a trauma for him, let alone the exam. And doing much treatment would be a hassle for us all where he'd just end up all pissed off with drops running down his face because we can't get it in his eye before he claws loose.
Before I do any of that I want to know I absolutely have to, and that it would do him some good. He's not really hurting now.
Aw, poor Kitty. I really don't know that much about eye problems in cats, but if he doesn't seem to be hurting, give it a few days. Wrapping a towel around their body, does seem to help for control. He's a pretty cat and does look good for that age. Good luck!
I disagree. Cats hide their pain very well. The fact that he's ornery should prove to you he's in pain. I really don't understand how you can justify not taking him to a vet. I'd mortgage my house to prevent my pets from suffering.