Does astigmatism deepen?

Astigmatism is a refractive state in which the refractive power of the eyeball is different on different meridians. The parallel rays are refracted by the eyeball. It is not a focal point, but two focal lines and a minimum dispersion circle at different positions in space. Astigmatism can be divided into corneal astigmatism and lenticular astigmatism. Most astigmatism is congenital and generally does not change too much, that is, it does not reduce or deepen. Astigmatism if the degree is relatively high, will affect the development of vision, should be detected as soon as possible, early diagnosis, early treatment. The above health science knowledge is for reference only, the specific situation needs to be checked in a regular hospital, judged by a professional doctor.