Imagine training the brain to see properly, I doubt it will change in adults however.
Even wearing light sunglasses helps tremendously but because of the socially frowned upon nature of wearing shades indoors and the long term effect of opening up the cornea constantly isn't good, it is a bandaid problem.
I look good too in shades and I can't use astigmatism as an excuse similar to how using one's Asperger syndrome diagnosis as a license to be insensitive cannot expect positive societal feedback.