How does glaucoma cause eye 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. .
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 .

Related Questions

Have large dark floater & glaucoma in right eye & today developed large floater in left eye. Do floaters have anything to do with glaucoma?

Floaters. Floaters are common and usually due to a change in the protein composition of the vitreous (inside gel of the eye). Rarely are they due to inflammation which can be connected with glaucoma (otherwise they are un-related). Check with your eyemd that they are "just" floaters and not inflammation in the eye. Read more...
No. The two are independent and represent separate eye diseases. Floaters could be a warning sign that a retinal tear or even small detachment has formed. They can also arise when there is bleeding in the eye. Although unlikely, blood that has not fully been reabsorbed can cause something called ghost cell glaucoma. An examination of the eyes is essential. Read more...
They usually do not. Usually floaters are associated with retinal problems. It is important to have a thorough dilated exam with onset of new floaters. Read more...