I've been experiencing the same issues with my vision. It's hard to describe, but I think the way you described it is better than any way I could have. I'm typing this as it is going on now. For me, it seems to happen most in the afternoon or evening. Maybe it's because I'm tired, I've been looking at computers all day, or because meds are wearing off. It usually subsides on its own, but it is very annoying. When it first started, I thought I was having one of my migraines, but it never did turn into one. I try to drink more water when it occurs; I don't know if it actually works, but seems to help.