Look at things in front of the eyes have black dots, with the eyes move and flutter, similar to flying mosquitoes, it is called flying mosquitoes. Flying mosquitoes is the main vitreous clouding, the vitreous itself is transparent, with the age or myopia, will gradually become opaque, and the formation of similar to the black silk, black dots, black stripes class not cloudy in front of the eyes floating, like flying mosquitoes like flying in front of the eyes, called flying mosquitoes, in medicine called vitreous clouding. Vitreous turbidity is generally physiological, physiological vitreous turbidity does not require treatment, observation can be. If the black dots or black filaments in front of the eyes in a short period of time rapidly increased, or a large black shadow cover, there is a sense of flash in the eye, you need to go to the ophthalmology department in a timely manner, dilate the pupil to view the fundus, whether there is degeneration or fissure, in order to timely treatment.