I had a detached retina which involved (spoiler for those that don’t like to read about eyes)
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Having the fluid removed and replace with gas. My eye was out of action for months, going through all the stages of gradually refilling itself. I had to stay mostly lying down for a week. For a while I had an effect like looking over the surface of water. Later, a big bubble that distorted vision.
Oh also, I was forbidden to go to high altitude because the pressure change could cause damage.
But after all that, just a few occasional floaters. My other eye still had lots of “tethered” floaters that seem to still be attached like seaweed strands.
So it can be done but you would go through a lot to get there.
I’ve heard that people do get that done just for the floater problem.
Oh. Well, I haven’t seen any changes like that. Yet. Still time, I guess.
And also seriously, I didn’t get any eye color change. I also had lens replacements a few years ago, but that didn’t involve a vitrectomy, so I still had floaters at that point.
When I went to a new opthalmologist recently, that asked about my eye health history. It took about 45 minutes!