Astigmatism of 175 degrees is a mild astigmatism, but this astigmatism will definitely cause different degrees of vision loss, so it is necessary to correct it early, otherwise it is easy to cause eye fatigue, especially in children, and if the disease is allowed to develop for a long time, it may even lead to the emergence of amblyopia or strabismus. For the correction of astigmatism, there are three main methods: the first is the frame glasses, is the most used a method. The second is corneal contact lenses, also known as contact lenses. The third is surgical treatment, which is generally required after adulthood, mainly by changing the radius of curvature of the cornea to achieve the purpose of astigmatism correction. Other than these three methods, there are no other methods that can be used for astigmatism treatment.