Just bumped into this group. I bet you can't help with this one. A couple of years ago I had an eye infection and it caused a lot of floaters to appear in both eyes. While most have cleared up, there remains a big one (Weiss ring?) in my right eye. It looks like a yeast organism although I'm not saying that's what it is. The opthamologist said "I've had a vitreous movement, everybody gets it, there's nothing you can do about it". My eyes are in otherwise top health.
BTW, I tried Dr. Schulze 's eye tincture, but it didn't do anything. It may have worked when I had the infection, but not after these grizzly thing appeared. They're right inside the vitreous fluid and I can't see how anything, apart from a laser, can get to them.