Eyes suddenly myopia aggravated may be related to the fatigue caused by the recent overuse of the eyes, because myopia is rarely seen will be in a short period of time the degree of growth of a lot, if in a short period of time found that the degree of change is very large, there may be a certain visual fatigue factors lead to pseudomyopia. In this case, it is recommended to go to the hospital for optometry, especially for pupil dilatation and optometry, which can eliminate the eye fatigue component and get a relatively accurate myopia, which can be compared with the previous myopia to see the change in the degree. If the change in prescription is not significant, such as within 50 degrees, glasses can continue to be worn normally and often do not need to be replaced. Unless the loss of vision with glasses affects the ability to see a lot, you can consider replacing your glasses, while changes within 50 degrees have less impact on vision and do not require replacement of glasses can be reviewed after six months. In general, the sudden aggravation of myopia in middle-aged and elderly people should also consider the factor of cataract, early cataract, crystal expansion, often manifested as myopia aggravation.