Vitreous body is a kind of transparent glial body, which makes up most of the eyeball. Vitreous opacity, which is often referred to as flying mosquito disease, is an abnormal shadow that floats in the field of vision. They look like black or gray spots, ribbons or cobwebs. When you turn your eyes, you’ll see that they float in the field of vision.
70% of patients with floaters are caused by vitreous liquefaction and posterior detachment. The eyeball is like an egg, most of which is filled by the vitreous body; the vitreous body is like egg white, which is a transparent and viscous gelatinous substance. With the growth of age, the jelly like vitreous body in the eyeball becomes more liquefied, as if the eggs will deteriorate after a long time. If the vitreous continues to liquefy, it will also lead to vitreous and retinal detachment. Vitreous opacity can aggravate the condition of floaters, and retinal detachment is a very serious complication. If there is no myopia, retrovitreous detachment will generally occur in 50-60 years old and above, and myopia, especially high myopia patients, has been detected in 20-30 years old will appear floater disease.
Myopic people are more likely to have floater’s disease, which is because myopia, especially high myopia, causes the eyeball to become bigger, and the vitreous body filling the eyeball will appear less, which will lead to early vitreous liquefaction.