Glasses degree low 50 degrees OK?

If the corrected vision reaches 0.8 or more, it is possible for myopic patients to obtain clear corrected vision after lowering the eye power by 50 degrees when fitting glasses. For example, the corrected vision can reach 0.8 or more, which can be lowered by 50 degrees. The main advantage of wearing myopic glasses is that it can alleviate the symptoms of visual fatigue when looking at close. However, if the patient is sensitive to myopia, after lowering the glasses by 50 degrees, the corrected vision cannot reach 0.8 or more, and it is not recommended that the patient will lower the lens by 50 degrees for fitting. Because at this time, wearing a lower degree of myopia, the patient cannot see clearly, which will cause visual fatigue, but may increase the degree of myopia.