250 degrees of astigmatism in a 3 year old child is not curable but can be corrected. If it is not corrected in time, it will cause a significant decrease in naked eye vision, which can be treated by wearing glasses and corneal contact lenses. 1. Wearing glasses: astigmatism is a kind of refractive error, mainly caused by irregular corneal morphology, astigmatism between 25 degrees and 50 degrees, generally does not affect vision, astigmatism up to 250 degrees should wear glasses in time and cooperate with amblyopia training, so that vision will gradually return to normal. 2. Wearing corneal contact lenses: If the effect of wearing glasses is not good, you can wear corneal contact lenses to improve astigmatism. You can also choose excimer laser refractive keratectomy or keratotomy when your child becomes an adult, which can generally achieve very good results. A 3-year-old child with astigmatism of 250 degrees should not be delayed, and must go to the hospital in a timely manner, and choose the best treatment plan under the advice of the doctor.