Astigmatism of 300 degrees must cause a loss of vision, which leads to blurred vision and also eye fatigue. Must be early through a variety of correction methods to improve, correct vision. There are three main methods used to correct astigmatism: the first, frame glasses, which is also the most used one at present. The second, corneal contact lenses, you can choose keratoplasty, or rigid corneal contact lenses, for the correction of astigmatism is very effective. The third, surgical treatment, including excimer laser surgery or femtosecond laser surgery, generally requires an age of at least 18 years old to be considered, and only then can refractive regression be avoided.