Nearsightedness, in people’s eyes, is nothing more than becoming a spectacle wearer, or having an excimer laser to “build” a pair of glasses on the eyeball, from which the vision becomes clear. But in reality, myopia is much more than a simple solution to refractive error. Myopia, especially high myopia, often thins the retina, which can cause retinal detachment and even blindness during strenuous exercise, heavy lifting, and impact. Therefore, myopia is not fine with glasses, but also requires regular fundus examinations to detect retinal lesions in a timely manner. 10% of patients with high myopia are discharged with retinal detachment Today, the prevalence of myopia continues to rise. According to a survey conducted by the Eye Center of Sun Yat-sen University, the prevalence of myopia is 30% in elementary school, 50% in junior high school students, and 70-90% in high school and college, myopia has seriously endangered the eye health of adolescents, however, myopia is far from being as simple as blurred vision, with the increase in myopia, the risk of retinal detachment will also increase. In terms of the degree of myopia, 100-300 degrees is low myopia; 300-600 degrees is moderate myopia; and 600 degrees or more is high myopia. Tang Shipo pointed out that in clinical practice, doctors have found that 10% of people with high myopia will develop retinopathy. ”Usually with moderate myopia or above, there is a possibility of retinal damage.” Experts believe that for patients with more than 300 degrees of myopia, the retina cannot grow accordingly because the eye axis is growing, and thus is stretched, and the fissure caused by the pull is not repaired in time, and the water that has liquefied in the vitreous body has a chance to pour into the retina, just like wallpaper seepage, the retina will bulge partly, and further deterioration may lead to retinal detachment. The majority of myopia cannot be cured and can only be corrected with refraction. Even the excimer laser surgery, which is now widely performed, only cuts a concave lens in the corneal stroma of myopic patients, but the myopic state of the eye itself is not corrected. It can be said that, for now, wearing a pair of glasses can solve the problem of myopic refractive error. But what most people don’t know is that myopia often has complications, the most serious of which is retinal detachment. Retinal detachment occurs 8-10 times more often in myopic eyes than in the rest of the population, said Tang Shipo. In the Department of Fundus Surgery at Sun Yat-sen University Eye Center, patients with retinal detachment are encountered almost every day, and they often come to the doctor only when there is a black shadow floating in front of their eyes, or even black smoke, accompanied by flashes of light. Experts say that the black shadow floating in front of the eyes may be caused by the vitreous pulling on the retina, so there are usually precursors before retinal detachment: black smoke in front of the eyes and a sense of flash. At this time, you should promptly go to the hospital for examination to determine whether the eye has a retinal detachment. Highly nearsighted people should not play strenuous sports Highly nearsighted people, whose far from wearing glasses lenses higher than others, whose eyes themselves have actually been very fragile. Tang Shibo said, their eye axis is long, the eye wall is thin, the retina is also fragile, and even the retina itself may have broken, at this time, such as the role of external force is very easy to be injured. Therefore, people with high myopia are advised not to play strenuous sports, mainly to prevent retinal detachment. Tang Shibo believes that playing basketball, high jumping, playing soccer, racing, diving, bungee jumping, bungee jumping, badminton, boxing and other strenuous sports are not suitable for people with high myopia. Divers, soccer players, deep water divers and boxers are all at high risk for retinal detachment. Finally, experts also stressed that people with high myopia should have regular eye examinations, vision and optometry every six months. It is quite important for highly myopic patients to see if the fundus is clean and beautiful, because, perhaps, retinopathy is happening unknowingly. (1) Don’t read for long periods of time. When reading to keep the book from the eyes 30 cm, reading time should generally not exceed 60 minutes, long reading to rest in the middle of about 10 minutes, during the break as far as possible to look at the farthest or now look at green plants to relieve eye fatigue and prevent the deepening of myopia. (2) Do not watch TV, computer, game consoles for a long time. Because the rays from the fluorescent screen are harmful to the eyes, the rapidly changing images on the screen, the flashing colors are invariably increasing the burden on the eyes and causing eye fatigue, so the time spent facing the fluorescent screen should not be too long, the brightness and contrast of the screen should be soft and appropriate, the lighting in the surrounding environment should be appropriate, and it is best to add a protective shield on the screen. (3) Take some neurotrophic drugs orally as appropriate, such as vitamin B1, B2, A, C, D inosine, etc., to promote the recovery of retinal function.