Myopia and astigmatism are two different refractive error disorders. Myopia and astigmatism can exist separately or at the same time, so some people with myopia will have astigmatism at the same time, but not all of them, and some of them only have myopia and no astigmatism. However, people with myopia are more likely to have a combination of astigmatism, which is usually associated with chronic squinting when looking away. Myopia patients with reduced vision in the naked eye, if you do not get glasses in time, you will squint involuntarily when looking at a distance, which over time may lead to astigmatism, which is generally conformal astigmatism. Therefore, when it is determined that myopia exists and affects vision, patients need to get glasses in time to correct myopia, improve vision, and also slow down the development of myopia. It is recommended that patients with refractive errors seek prompt medical attention to evaluate their condition and follow the doctor’s instructions for treatment.