How does glaucoma cause eye floaters?

Usually not: Glaucoma does not affect the vitreous fluid and does not cause floaters

Not associated : Glaucoma, when serious, causes scotomas (blind areas), that may be misconstrued as floaters. Glaucoma may be caused by intraocular bleeding, retinal tears/detachment, tumors, inflammation all of which may have some type of floating substance, but not the classic degenerative (age related) floaters. So, glaucoma isn't a disease that causes floaters

It does not cause it: Just like within the body there are many parts, although one organ, the eye is very similar with many parts as well. Where floaters occur in the eye is separate from the area where the effects of glaucoma occur, which is the optic nerve. Floaters are typically black spots that appear real like gnats in front of you. Vision loss from glaucoma is like dark patches in vision that don't go away.