When it comes to huckster hypester Trudeau, you have to pay for everything - good, bad and/or ugly.
Astigmatism is a physical problem where the refractive lens of the eye is misshapen. Usually the condition is treated with astigmatic lenses or corrective surgery, including lasix (not a surgery I would recommend).
I know of no natural or alternative remedies for the condition, though yoga is said to help as are certain eye exercises. Here are a couple of links that may help: