When people talk about floaters, no one understands that there is many different types caused by different things. The floater could be blood, collagen, a foreign object, etc. The type of eye floater that most people see are the benign type. They look like little perfect bubbles, sometimes they have a core. These bubbles will form stands and often the strands are interconnected. I have seen the story a thousand times. Person goes to eye doctor, eye doctor performs slit lamp test to examine the inside of the eye and sees NOTHING. Eye doctor because he has no idea where the floater is says the floaters must be extremely small and very close to the retina and this is why they appear so big. So every person goes home thinking they have shit floating in their vitreous. The eye doctor never suggests that this issue is within the retina (which is actually part of the brain) because the brain and neurotransmission is out of his field for the most part. He may have knowledge of the retina but not of the working of GABA, Dopamine, Serotonin, etc within it. The only place within the eye that such perfect circles exist is within the receptive fields. This would explain why some of the spheres/bubbles appear to be polarized (some have a clear core, some have a dark core).
I strongly believe that eye floaters are an issue with the nervous system and the retina.
Everyone knows that the image that strikes the retina is inverted inside the brain. So therefore when you see your floaters sinking within your eye, they are actually floating to the top. If eye doctors know what they are talking about, why do they tell everyone to not worry because your floater will sink and settle out over time???
Makes sense why people see this shit after they take drugs.