Astigmatism 300 degrees, astigmatism degree is relatively high, usually can not be self-healing. Astigmatism is a very common refractive error in ophthalmology. 300 degrees of astigmatism basically has no possibility of self-healing and requires corrective treatment. There are several ways to correct astigmatism: 1. Frame glasses: this is the safest and most convenient way to correct astigmatism, but the effect is not good for larger astigmatism. 2. Rigid corneal contact lenses: also known as RGP glasses. These glasses are more effective in correcting high astigmatism, especially irregular astigmatism. 3. Laser surgery: Including keratoconus surgery and intraocular refractive surgery, astigmatism can be corrected. If the astigmatism appears suddenly or the astigmatism worsens progressively, please go to the regular eye medical institutions in time to exclude whether there is cone cornea or not, so as to avoid delaying the condition.