These floaters are likely permanent unless they are removed by vitrectomy. However, vitrectomy is serious surgery and generally is not done for floaters alone. Vitrectomy is performed for floaters/hemorrhage associated with an acute retinal detachment, diabetic retinopathy, trauma, etc.
Sorry, Cristina: I clicked too soon! Try to ignore the floaters if possible. In other words, do not look for them and try to find them. There is a chance that your brain will learn to ignore the floaters, and they will become less troublesome. If you ever have sudden new floaters, such as a shower of bugs or cobwebs, you must see your retina specialist immediately. Floaters themselves are not harmful; I have hundreds which I've had for many years.
Mine are due to a rd I had in 2006. I have a macular pucker and edema. I'm trying to ignore them