Why do we sometimes see flying in the air colorless fly? Bashny.Net

Many people see flying in the air colorless "flies", especially when looking at the bright lit surface, such as a clear sky. This effect is the scientific name - destruction of the vitreous tela.V Ideally vitreous our eyes - is transparent gelatinous substance, but due to illness, injury, increased eye strain or simply age-related changes in individual fibers thicken and it loses its transparency, which is perceived by us as mushki.

Usually destruction of a vitreous nothing dangerous and cause complications, but if flies appear very rapidly, accompanied by flashes of light, it can speak about the imminent retinal detachment, which leads to blindness.