If your floaters disappears, they will be remembered as a trigger to take care of your health. ;-)

Since I have saw [non-annoying] floaters once in a while (months probably) [for some seconds only] in the past, I can easily imagine people that see them rarely and that are not affected by them at all (beside it doesn't take a lot of imagination to imagine worst or less worst floaters).

Well that is very interesting about using a "pilates ball" to sit in front of computer... it mights be good for your balance, abs, etc. too! It might be interesting even for people without much problem for overall health. On a similar subject... have you tried massage chair? They are amazing... I would like to have one at home (there is also extension that you put over a chair). They really does seem effective when I tried them at store and some look quite affordable. It probably won't hurt for relaxation.

Personally, I had major pain "in the eye" weeks before these floaters appeared (it was hurting to keep them open before sleeping)... I should have rested my eyes more (in the past, I have always believed you should not "force with your eyes"), chance are it would have helped (maybe not, but I will never know). At least, we gotta listen to our body, it probably doesn't send signal for nothing.