One of the supporting structures of the human eye is called the vitreous humor, and a cloudy substance in the clear vitreous humor is called vitreous opacity.
Minor vitreous opacities may not affect life and vision, but in severe cases they can cause loss of vision, and in cases of massive vitreous blood accumulation, vision can be reduced to the immediate manual. (1) Physiological vitreous clouding: often due to congenital or age-related changes in vitreous metabolism, resulting in metabolized cells or metabolites floating in the vitreous, this type of vitreous clouding usually has little impact on vision and life, patients complain of floating small black shadows in front of the eyes, also known as mosquitoes, can not be dealt with, but if the number of floating small black shadows in front of the eyes suddenly However, if the number of floating small black shadows in front of the eyes suddenly increases, or there is a feeling of flashing in front of the eyes, or a fixed black shadow obscured, should promptly go to the hospital.
(2) Pathological vitreous clouding: this kind of vitreous clouding is mostly caused by inflammation or hemorrhage, which is manifested by floating black shadows in front of the eyes, such as filiform, dotted and blocky, and can gradually diffuse into a piece. If it is caused by inflammation, such as endophthalmitis, uveitis, retinitis, the inflammatory cells in the vitreous body into a group caused by the floating black shadow in front of the eyes; if it is caused by hemorrhage, such as diabetic retinopathy stage IV, retinal fissure, intraocular tumor hemorrhage, etc., can cause vitreous blood clouding, at first the hemorrhage manifested as ink scattered, such as line floating, and later slowly diffuse to the entire vitreous cavity, manifested The initial hemorrhage appears as a scattering of ink, such as lines floating, and then slowly spreads to the entire vitreous cavity, showing blurred vision.
In summary, physiological vitreous turbidity is a common sign, highly myopic eyes and elderly people are prone to appear, pathological vitreous turbidity exists in a variety of ophthalmic diseases, as long as various causes cause the transparent vitreous no longer transparent that is vitreous turbidity.