How is baby astigmatism caused?

Astigmatism refers to the refractive power of the eyeball on different meridians. After parallel light is refracted by the eyeball, the imaging is not a focus, but two focal lines and a minimum diffusion circle. If the patient shows astigmatism, it is mainly considered to be caused by congenital inheritance and acquired corneal trauma, eye disease, surgery, etc. If the baby shows astigmatism, it is considered to be congenital.