What happens when astigmatism is severe?

Astigmatism is a common disease in ophthalmology, belonging to a type of refractive error. The severity of astigmatism is divided according to different degrees. Astigmatism below 150 degrees is called mild astigmatism, astigmatism above 150 degrees and below 300 degrees is called moderate astigmatism, astigmatism above 300 degrees is called high astigmatism. If the astigmatism degree is relatively high, it will lead to severe vision decline, and the patient will show distorted vision, seeing point-like or linear light sources. It shows radial halo and other manifestations. If children show high astigmatism, it will also affect the development of retinal function, leading to amblyopia. Therefore, if high astigmatism is found after examination, it needs to be treated in time. At this stage, it is mainly corrected and treated by wearing glasses and rigid contact lenses.