Floaters are deposits of various size, shape, consistency, refractive index, and motility within the eye's vitreous humour, which's normally transparent. They may be of embryonic origin or acquired due to degenerative changes of the vitreous humour or retina. or their refraction of the light that passes through them, and can appear alone or together with several others in one's field of vision. They may appear as spots, threads, or fragments of cobwebs, which float slowly before the sufferer's… (More on Floater)