Astigmatism of 250 diopters is high and is classified as severe astigmatism. Usually the refractive index of mild astigmatism is under 1.00, the refractive index of moderate astigmatism is between 1.00 and 2.00, and the refractive index of severe astigmatism is between 2.00 and 3.00. Therefore, when the degree of astigmatism reaches 250, it belongs to the patients with severe astigmatism, and it is usually difficult to be treated, and so it is considered to be high. Patients with 250 degrees of astigmatism will bring a lot of inconvenience to the patients in their life, such as blurring of vision and unclear, as well as too much focus on the eye’s ability to adjust, more prone to visual fatigue phenomenon, as well as eye aches and pains, distortion of vision and other discomforts, such as not under control, the number of degrees will continue to increase amblyopia caused by the hazards of visual acuity loss. 250 degrees of astigmatism patients, usually the treatment is more difficult, but can be corrected by wearing plastic lenses and through the way of surgery, can control the aggravation of astigmatism, usually pay attention to the need to pay attention to eye hygiene, prolonged use of computers can be appropriate to close the eyes and rest, to relieve fatigue, or to do eye exercises, correct sitting posture with the eyes, can be a certain amount of help! If there is astigmatism 250 degrees of patients, should be timely to the hospital targeted examination and treatment, to avoid delaying the condition.