After myopia it is clear whether it is pseudomyopia or true myopia. If it is the latter, it should be corrected in time to avoid blurred vision so that vision continues to decline, eventually leading to low vision. Myopic adults should also have an annual optometric survey; non-myopic adults should have an examination every two years. Also pay attention to eye care, avoid prolonged eye overuse, and be sure to wear quality, suitable for their own glasses. Most people do not know that glasses have a life span, 29.2% of people 3 years or more to change a pair, 36.4% of people glasses are bad to replace. Experts point out that our country is considered a sandy region, resin lenses are best replaced in 2-3 years. And people are not too careful about the maintenance of lenses, many lenses have scratches and other conditions, resulting in a reduction in lens transmittance, it is easy to cause visual fatigue and accelerate myopia. Therefore, it is best to go to the original lens unit every six months to check the vision, care for the lenses, and once the lenses are found to be overdue for service, they should be replaced immediately.