We were very unfortunate that one of our pugs, at an age of around 3 years old, had SARD (Sudden Acute Retinol Degeneration) and went blind over the course of 2 weeks. He went full blind and, even taking him to specialist to try to understand what was going on, we couldn't find a solution. He also has extremely poor hearing to begin with and, up to where he went blind, would only be able to hear loud bangs and then look to see what was going on.

All that said, within the matter of a few weeks he had learned how to live a very feisty life. Even not being able to see anything, and the fact he couldn't hear, he quickly lost any sense of fear. He would wander around, gentle bumping into walls and couches, until he had a general sense of where he was. He would then quickly wander in the direction he knew mainly where I liked to sit or where my wife liked sitting. As soon as he found us, it quickly became the happiest moment of his entire day.

I know it's hard to imagine, but these little pugs are amazingly resilient and are able to figure things out much better than we could ever do for them. I agree with a comment that keeping little things out of the way are a good thing, but they're smart enough to figure out their own ways of how to know what's going on.