Astigmatism belongs to one kind of refractive error, the main symptom is to cause different degrees of vision loss, so if you want to judge whether there is astigmatism or not, you can only determine whether there is astigmatism and the degree of astigmatism in the eyes through the optometry examination, which is the gold standard of the examination. At present, there are three main methods to correct astigmatism. The first one is frame glasses, which is the most widely used and the most classic method. The second is corneal contact lenses, commonly known as contact lenses, in which rigid corneal contact lenses, also known as keratoplasty lenses, can effectively correct astigmatism and ensure a clear quality of vision. The third, surgical correction, mainly includes excimer laser surgery and femtosecond laser surgery.