So what exactly is mosquito flying disease? The human eye lens behind a transparent gel state of the vitreous body, with the age of the vitreous body will be followed by aging, the original gel state will occur part of the liquefaction, the appearance of fine dots, stripes and other cloudy material, with the rotation of the eye and floating wandering. When light enters the eye, these cloudy shadows transmitted to the retina, people will see a black dot flying in front of the eyes, that is, mosquito flying disease. If patients have flying mosquito phenomenon in both eyes, but can not determine which eye has flying mosquitoes, and after a period of time, this phenomenon did not aggravate or change, flying mosquito location is also more fixed, more benign; On the contrary, flying mosquito phenomenon if suddenly occur, and limited to one, the direction of mosquitoes flying and uncertain, black shadow obscuring the field of vision, poor vision, visual field loss, then we should be alert. In the past, flying mosquitoes more than 40 years old in the middle-aged and older people, now with the increase in pressure, the onset of flying mosquitoes patients age is getting lower and lower. Many white-collar workers and students because of long-term use of computers, resulting in visual fatigue or myopia increases year by year, but also early to join the army of patients with flying mosquitoes. Long time eye users should often go outdoors to relieve visual fatigue. In addition, highly myopic people should pay attention to avoid strenuous exercise and external impact. Balanced diet, eat more bright food, such as food rich in B vitamins and wolfberry, panax ginseng, etc.. Pay attention to eye hygiene, regular eye examinations also help to keep away from eye diseases.