Wearing astigmatism correcting glasses is only to enhance the patient’s corrected vision, it does not eliminate the astigmatism and return the patient to normal, no matter how long it takes. Astigmatism is a common type of refractive error. Most patients have astigmatism due to congenital developmental abnormalities, while a few patients have astigmatism due to keratitis, ocular trauma, conical cornea, and ptosis. Astigmatism can be diagnosed through an optometry examination to find out the specific astigmatism and important indicators such as astigmatism axis, and can then be corrected by wearing glasses. The purpose of correction is to make up for the refractive defects of the patient’s eyes through special lenses, so that the patient can see the outside world clearly, but it can not eliminate astigmatism, and can not make the eyes return to normal.