Many people who spend their days with glasses will have the feeling that it is difficult for their eyes to see things at close range for a long time. For normal eyes, when looking at objects at close range, the eyes need some adjustment to see clearly. Nearsightedness is characterized by less adjustment needed, and the eyes are actually in a relaxed state when looking at an object at close range. At this time, patients with low myopia can avoid wearing glasses to avoid the discomfort of fatigue, eye swelling, eye pain, and double vision when looking at things from long hours of close work. Therefore, if the myopia does not exceed 200 degrees, you can not wear glasses when looking at something at close range, such as reading and writing, or looking at the computer. However, for myopia of 300 degrees or more, it is not advisable to remove glasses at will, whether you are looking at a long distance or a close distance.