Astigmatism of 120 degrees is mild astigmatism, which is not too serious and in most people, including adults or children, does not significantly affect vision, so this condition usually does not need to be treated and does not require glasses. However, the specific situation should be analyzed. If the eyes have 120 degrees of astigmatism, the first step is to go to the hospital for a vision examination to clarify what the current vision status is. If there is already vision loss or eye fatigue, such as frequent eye pain, photophobia, tearing, reading can not last or dizziness, headache, these symptoms should be corrected early, only after wearing glasses, vision can be restored to normal, so as to avoid the occurrence of eye fatigue.