There is no positive correlation, that is, no relationship, between naked eye vision and the degree of myopia. For example, if two people have myopia in their eyes and their myopic vision drops to 0.4, some people may have only 100 degrees of myopia, while others may have 400 degrees of myopia, which varies from person to person. Therefore, in order to accurately understand whether the eyes have myopia and the size of the impact of myopia on vision, you need to go to a regular hospital for an optometry examination and vision test, which can accurately understand. If myopia has a greater impact on vision, it is important to wear glasses early to improve vision and maintain clear visual quality.