How does astigmatism recover itself?

Astigmatism is not self-healing, under normal circumstances need timely corrective treatment, for mild astigmatism, no obvious symptoms can not be corrected, if the phenomenon of vision decline, it is recommended to wear corrective glasses, for high astigmatism also need to choose corneal contact lens correction, for congenital or corneal transplantation caused by high astigmatism, but also need surgery.