Eye health directly affects the quality of daily life, especially for myopia, people have a lot of questions, but the lack of professional eye knowledge of the public face online rumors, but do not know how to make a judgment, it is easy to go into a misunderstanding. 1, myopia will not have presbyopia after old age? Presbyopia is a very normal disease of the elderly. Myopic eyes will also have presbyopia, but if there was a problem with myopia before, presbyopia and myopia corrective lens degree a positive and a negative, just to neutralize the symptoms of presbyopia to offset to an imperceptible degree, it seems as if myopia will not be presbyopia. Some people also mentioned that myopic eyes cannot see far away and presbyopic eyes cannot see near, so will there be a time when the eyes will return to normal and see near and far without problems? Unfortunately, the answer to this question is no, myopia and presbyopia offsetting effect at most let you see near a little clearer, just look at the distance, you still have to bring myopia glasses. 2, squinting to see things will make the eyes increase? Some people have a habit of squinting when they can’t see something, which does cause further loss of vision, but to be precise, this behavior is making your astigmatism increase. We can imagine the state of the eye when squinting, the upper and lower eyelids are in contact with the eyeball, the exposed part of the eye becomes narrower, the cornea is compressed, and it is under this pressure that astigmatism increases. The symptoms of astigmatism are generally heavy shadows, indistinguishability between upper and lower eyes, and a decrease in the quality of vision. 3. Will myopia of over 1000 degrees be inherited? Medically we refer to all myopia above 600 degrees as high myopia. Clinical practice has proven that children with both parents being myopic have a higher chance of having high myopia. We cannot rule out that some children’s myopia is influenced by their parents’ habits, for example, if the parents love to read, the child may enjoy reading and the possibility of myopia increases. But medically speaking, compared to those children whose eyes of both parents are normal, children of highly myopic people do have increased risk factors for high myopia from physiological inheritance. 4, Wearing glasses is best to wear less than the normal correction degree? This is based on age, refractive status, the presence of other visual problems, etc., can not be generalized. If for adults who do not have other eye diseases, according to the individual eye life needs to see. In the statistical epidemiology there is a concept of living vision that there is no problem to live a normal life as long as the vision is not less than 0.5, because this vision is fine to live and drive. But there are some people who do get used to very clear in order to live normally, for example, need to reach more than 1.0 vision to feel clear, these people wear glasses below corrected vision, look at things will take squinting and other actions, it may lead to visual fatigue; and some people are used to a blurred life, because the eyes are not very good, all kinds of sensory organs are fully mobilized, also can identify objects near and far, and does not affect life, then Wearing glasses that are lower than corrected vision is not any problem. However, it should be reminded that the above choice of glasses is for adults whose refractive state has been stabilized, if children’s vision is still developing, they must be corrected with reasonable glasses according to the doctor’s advice.