Astigmatism is a type of refractive error. Whether it is serious or not depends on the degree of astigmatism. If the astigmatism is relatively small, such as 100 degrees or less, it usually does not affect vision and does not cause eye fatigue, so it is not serious and does not need to be handled, not to mention the need for eyeglasses. However, if the degree of astigmatism is relatively high, resulting in vision loss, not only will cause a decline in distance vision near vision will also be reduced, so see far and near are more blurred, it is easy to appear eye fatigue symptoms, such as eye pain, photophobia, tearing, dizziness, headache, can not read for a long time and so on these symptoms, which is more serious. After the appearance of the above mentioned symptoms, it is necessary to wear glasses to improve vision as soon as possible.