Yes, doing eye exercise is really good for eyes which will make eyes feel better and comfortable. However it will not treat astigmatism which is hard to cure except through the surgery. You could keep on doing eye exercise to make the eyes feel moisture and comfortable. You could also use the warm compress to improve the eye sight.
As we all know, doing eye exercises is good for our eyes. You can treat astigmatism through exercises. But before doing any of these eye exercises,you should consult your eye doctor. It is much safer to know if these activities can be of help for your condition to avoid further damage. By the way, astigmatism, like nearsightedness and farsightedness, usually can be corrected with eyeglasses, contact lenses or refractive surgery. Hope helpful for you.
No, eye exercise can relieve eye strain and improve blood circulation around eyes. But astigmatism is caused by the irregular shape of the corneal surface which leads to refractive errors. It is often congenital, so it can't be improved by eye exercise. Some cases are caused by eye disease like corneal ulcer.