Astigmatism of 800 degrees is a very serious form of astigmatism, because astigmatism of this magnitude is usually caused by various organic pathologies, such as inflammation of the cornea or corneal scarring, corneal trauma, resulting in corneal irregularity or lens dislocation or lens deviation due to trauma, and it is important to go to the hospital early to improve the optometry and corneal If the lens is dislocated or skewed as a result of an eye injury, you should go to the hospital as soon as possible for an optometric examination and corneal topography to clarify the degree and axis of astigmatism, including the shape of the cornea. It is recommended to first consider corneal contact lens correction, if the corneal contact lens can not correct the vision to normal, only through corneal transplantation or corneal refractive surgery correction.