Vitreous turbidity is also known as flying mosquitoes. The vitreous cells or tissues that remain in the vitreous from birth, the hemorrhage of the retina or uvea, the hemorrhage or exudate of hypertension, diabetes, uveitis, and the vitreous degeneration of highly myopic eyes in the elderly can all lead to vitreous liquefaction and cloudiness. Other things such as eye trauma, intraocular foreign bodies, parasites or tumors can also occur vitreous turbidity. Causes of vitreous turbidity: 1. Mild patients feel that black shadows float in front of their eyes, such as mosquito flies. The onset of the disease is sudden, and the disease develops quickly. With the vitreous turbidity of the site and the degree of different degrees and affect the degree of vision is not the same. Mild clouding does not affect vision, and cannot be detected by examining glasses. 2, more significant clouding, common in degenerative myopia, uveitis and vitreous hemosiderosis. Patients feel a coarse and large amount of dark shadows in front of their eyes, with varying degrees of visual acuity loss. Examination of the fundus may reveal floating clumps of dust or thick strips of flocculent cords, and in severe cases, the fundus cannot be seen, or even no red light reflection in the fundus. It is dark. 3.Inflammatory clouding: When the nearby tissues are inflamed, it is caused by white blood cell excretion and protein agglutination. It is a common manifestation of various retinal and uveitis. Such as tuberculosis and syphilitic chorioretinitis, etc., fishing spirochetal uveitis, uveal brain for migratory endophthalmitis, etc. 4, hemorrhagic clouding: common in trauma, surgery, various retinal vascular diseases and blood clots. 5, degenerative clouding: seen in high myopia, retinal detachment, vitreous calcium and cholesterol deposition, etc. 6.Congenital clouding: Most of the embryonic mesenchymal tissue remains. 7, other: such as intraocular foreign bodies, piggyback cysts, retinoblastoma, etc., can cause vitreous clouding. Vitreous turbidity treatment prevention: physiological mosquitoes without treatment. Pathological vitreous turbidity should be treated for the original disease. The correct approach is to find an ophthalmologist as soon as possible to determine the nature of “flying mosquitoes”. Generally speaking, due to age-related vitreous degeneration, combined with eye overuse, fatigue and other causes of flying mosquitoes is a harmless vitreous turbidity, most of the flying mosquitoes do not affect the visual function, no special drug treatment. As long as appropriate rest, avoid strain, do the work, rest to have a regular, long time eye rest every hour for 5 to 10 minutes, do not use the computer time is too long, self-perception of discomfort to suspend the use will be improved. In addition, you can take appropriate eye care products, you can also eat more food containing vitamin C, such as vegetables and fruits will also help. However, vitreous turbidity can be a precursor to serious eye diseases, such as retinal detachment or vitreous hemorrhage, so it is important not to take it lightly. You should be especially alert and seek detailed examination by a qualified ophthalmologist when you have the following phenomena: severe vision loss, distortion or distortion of vision; redness, pain, photophobia and excessive tear secretion in the eyes; fixed black shadows; or flashes of light; sudden appearance of a large number of black dots, etc. Because of the intraocular hemorrhage, retinal detachment and other causes of mosquito flying is the need for surgical treatment. The symptoms of posterior vitreous detachment generally have a black shadow floating in front of the eyes, flash. It often occurs in the elderly and myopic patients! Generally through the routine eye examination can be clear! Usually no treatment is needed! The most important thing is to check the development of posterior vitreous detachment, there is no formation of retinal fissures, such as retinal detachment has not yet occurred, you can laser closure of the fissure, otherwise, the need for surgical treatment!