Whether it is better to have low or high astigmatism depends on the degree of astigmatism, the type of astigmatism, and the age of the wearer. If it is a small child, try to give enough astigmatism, especially nearsighted astigmatism. If the astigmatism is relatively high, children may not adapt to it for the first time, if the astigmatism is cis-routine, you can give a little lower, if the astigmatism is retro-routine, try to match a little higher, in order to fit. For adults, cis-ruled astigmatism has less impact on vision, for example, 100 degrees of cis-ruled astigmatism may only be given to 50 degrees, and vision can be improved to 1.0. If it is retro-ruled astigmatism, it often has a greater impact on vision, if 100 degrees of retro-ruled astigmatism is given to 75 degrees, vision may not be significantly improved, and it is necessary to get enough 100 degrees to improve vision to 1.0. Some people may not be comfortable with high astigmatism, and in this case, they can give a little bit lower first, and then gradually add more. This is the only way to achieve both comfort and corrected vision.