Eyeball floating phenomenon

Eyeball floating phenomenon: colorless and transparent gel-like body in the 4/5 cavity filled with eyeballs, which mainly consists of collagen fiber filaments and a gel consisting of 98.5% -99.7% water. The vitreous itself has no blood vessels, and its metabolism is very low. Its nutrition comes from the choroid and aqueous humor. The vitreous body is susceptible to various physical, chemical, trauma, inflammatory diseases, degenerative degeneration, etc., decomposes, and liquefaction occurs. It appears as a variety of floating objects in the form of dots, threads, spider webs, etc., and floats up and down with eye movement.