Although doctors have repeatedly stressed that people with high myopia should avoid strenuous sports as much as possible to avoid accidental damage to the eyes such as punching, but because they do not know the reasoning, many myopic men still can not help but participate in some strenuous sports, which is undoubtedly a dangerous time bomb for the eyes. How is myopia in the end Before we figure out the whole thing, we must first understand one thing, that is, physiologically speaking, what causes your myopia? There are two general types of myopia, axial myopia and refractive myopia. To make it easier for you to understand, Yang suggests that you should first think of the eye as a camera, which can be imaged through the lens focal length and lens stretching, corresponding to the eye they are the corneal lens focal length and the length of the eye axis, which represent refractive myopia and axial myopia, respectively, axial myopia is characterized by the elongation of the eye axis, refractive myopia is characterized by a curved or thickened cornea or lens, both of which Both of these conditions are irreversible and, in the same way, result in light not being refracted to the light-sensitive cells at the very bottom of our eye, so we need to wear glasses to correct our vision. Retinal problems in high myopia An eye with more than 600 degrees is medically known as high myopia. We recall the two types of myopia mentioned above. Based on clinical experience, a significant amount of high myopia is axial myopia, which means that the eye axis is stretched. Yang Xiao uses a balloon as an analogy for the condition of the eye at this time. The elongated eye axis is like a balloon being blown up, the walls of the balloon will become thinner, and our retina will also become thinner, and it will be able to withstand less pressure. If a patient is involved in strenuous sports such as playing basketball and has a punch, they are prone to retinal detachment, and the direct consequence of retinal detachment is that they will go blind. In the interview, Yang also mentioned that another problem with high myopia is that along with the thinning of the retina, there can be fissures in the retina, as well as some degenerative lesions, which indicate that the retina has developed problems, but most of these lesions are in the peripheral part of the eye wall, so they are usually not self-aware, and highly myopic patients are ignorant of this, and become a potential threat to blindness. People with high myopia should have an annual checkup for their eyes. “Seeing dark shadows floating in front of your eyes from time to time and seeing flashes of light with your eyes closed are signs of retinal problems, and patients should be alert once they are detected.” Yang Xiao said, “There are also normal people who occasionally have black shadows in front of their eyes after looking at something white or on the bright side, but this is normal and there is no need to be alarmed.” For all the hidden dangers of high myopia, Yang Xiao said that it is difficult to detect retinal problems during routine medical examinations, so it is best for patients with high myopia to do a professional “checkup” for their eyes once a year in order to detect hidden eye health problems in a timely manner and avoid the situation of a major disease that is difficult to treat once discovered. Laser surgery for myopia, no need to talk about it Because of doubts about the safety of laser corrective surgery, doctors in Taiwan announced that they will no longer perform such surgery. The last two days, a controversial news about the safety of laser corrective surgery was released, quickly caused a furore among netizens, the report mentioned the patient in his 40s, laser surgery for only 10 years on the unexplained vision loss, so that patients who have undergone laser corrective surgery, a heavy shadow over the heart. The Internet for a long time, lower the screen can protect vision In addition to how to protect vision on this issue, in addition to work on the computer, to consciously blink from time to time, Yang Xiao also gave the network users a good suggestion: we are on the computer, “the best screen lower, so that the eyes form a downward-looking posture, in this case the evaporation of tears in the eyes will be reduced, not easy to dry eyes.” As you can imagine, when you have to look up to see something, the eyes are automatically opened wide to see, the eye muscles will become tense.