Mild astigmatism in children does not affect vision and is usually not treated. However, moderate to high astigmatism can cause amblyopia, and refractive correction should be performed in this case. Astigmatism has the following principles Low astigmatism is physiological, that is, farsighted astigmatism is within +0.5D, the axis is 90 degrees, myopic astigmatism is within -0.5D, the axis is 180 degrees (because the cornea is affected by the pressure of the upper and lower eyelids, the curvature between the vertical diameter is greater than the horizontal diameter, so the flexion force between the vertical diameter is strong, and the flexion force of the horizontal diameter is weak) generally will not affect vision. The lens is usually not necessary. If there is a change in the axial direction of astigmatism, which affects the visual acuity or has the symptoms of visual fatigue, the astigmatism should be corrected even though it is low. In principle, all astigmatism should be corrected, but if the astigmatism of children is too high and they cannot adapt to it, they can first wear low degree corrective glasses and slowly adapt to it, and then wear glasses with full correction of height. Whether the astigmatism is low or high, the axial direction must be correct, otherwise the patient will be left with a new refractive error, which will bring about disturbing symptoms unacceptable to the patient. Without affecting the vision or eliminating the symptoms, astigmatism should be corrected at a low level, especially if the astigmatism is high and the axial direction is not between the positive axial path, the correction should be reserved, full correction will make the patient feel that the size and shape of the object is not the original appearance, and some deformation caused by the error of spatial positioning. Often farsighted astigmatism than myopic astigmatism of this interference symptoms more serious. The premise of treatment for refractive amblyopia caused by astigmatism is to correct the astigmatism so that the retinal image is clear and unambiguous to facilitate the recovery of vision, and the best vision should be obtained in the prescription. After wearing the glasses, the astigmatism should be re-examined every six months to a year, and the astigmatism correction glasses with the best vision should be worn all the time. The treatment of pediatric astigmatism should be made under the guidance of a doctor according to the specific situation of the child, do not blindly treat.