The number of degrees of myopia that requires glasses also depends on the vision without glasses and the age. If, among small children, the vision without eyes is below 0.8, nearsighted glasses are required. Usually the nearsightedness at this time is about 50-100 degrees. Although the nearsightedness is not high, but considering the need for vision, glasses are still needed to be able to see distant objects without affecting the development of vision. The other thing is that wearing glasses to improve vision can slow down the growth of myopia. In adults, glasses are usually only considered when the bare eye vision is not sufficient for daily work. If your eyesight can meet your needs, wearing glasses or not is fine because myopia is more stable and does not change much after adulthood, so wearing glasses or not has little to do with changes in myopia.