In daily life, we often hear people talk about suddenly feel as if there are mosquitoes or spider webs floating in front of the eyes, grab and can not catch, drive and can not drive away, very annoying ……, which in medicine is called “vitreous turbidity” or “flying mosquitoes”. According to its cause can be divided into physiological mosquito flying and pathological mosquito flying. The peak incidence of physiological flying mosquitoes in the 50 to 60 years of age, but in myopic people can be early onset. Vitreous humor is a jelly-like transparent material in the human eye, with the growth of age, it will gradually aging, liquefaction, the original neatly arranged structure collapse collapse, flocculent floating material, projection on the retina, there are people flying in front of the “mosquito”. Ophthalmology Department of Changzhou City Hospital Peng Shijun Chinese medicine believes that this disease is mostly liver, gallbladder, kidney three meridian lesions. Liver and kidney blood deficiency, or sadness, depression and anger, liver fire on the inflammation; or heat illness injury yin, true yin depletion and other reasons. Of course this “mosquito” most of the vision does not affect, can be stable for a long time, however, things are not so simple, this degenerative liquefaction of the vitreous body due to volume and morphological changes, sometimes its neighbors “retina” to produce pull, appearing flash The retina is the most important membrane tissue in the human eye, covered with blood vessels and nerve cells, this pulling force may cause the retina blood vessel rupture hemorrhage, retinal tears appear fissure, resulting in a serious blinding eye disease – retinal detachment. So once you find a flying mosquito swarm in front of your eyes, you should go to the hospital ophthalmology to do a detailed specialist examination, after the examination, in case there is unfortunately a serious eye disease, then we should treat for the eye disease. However, due to the development of the disease changes, the results of a test is not the same as no problem forever. Once there is a sudden increase in flashing light, flying mosquitoes, or the phenomenon of obscured vision, it is necessary to immediately receive a detailed examination again. In the clinic, there is an old gentleman’s case has left a deep impression on me, the first detailed fundus examination although no retinal lesions were found, but I found that his intravitreal clouding in a small number of floating blood cells, thus judging his vitreous on the retina has a pull, suggesting that he re-examined in a week, this examination was found a piece of retinal tissue was completely ripped off, the formation of a large Fortunately, there was no detachment yet, and he was immediately treated with laser for the fissure, which not only preserved his original vision but also avoided the pain of surgery, so he was undoubtedly lucky. However, if he did not follow up on time and delayed until the retinal detachment came back, the situation would be a different story. I often encounter some people in the clinical carelessness, after the emergence of mosquitoes, think that vision is not yet affected by no big deal, too much trouble to go to the hospital, the result is delayed until the detached retina occurred serious proliferation of shrinkage to come to the clinic, even through surgery to pave the retina, but the vision is permanently reduced or even disappear, and ultimately regret life. Pathological mosquitoes are generally caused by serious diseases in the eye, such as retinal detachment caused by high myopia, high blood pressure and diabetes caused by retinal vascular disease, age-related cataracts, intraocular inflammation and other pathologies that lead to vitreous changes. It often appears as a sudden appearance of a large number of flying mosquitoes, a large number of flashes, distortion and other strange phenomena, black shadows obscuring the field of vision, poor vision, visual field defects, etc., are bad signs that must be noted, indicating that the vitreous body may be in acute degeneration, or the retina has the risk of breakage, we must quickly seek medical advice. If the diagnosis is confirmed, appropriate treatment is often required.