If you have astigmatism you may have distorted vision, double vision, haloes or glare. Astigmatism is caused by a cornea that has an irregular shape which makes it difficult for the eye to focus clearly on images.
Glasses or contact lenses can be used to correct these problems. However, they do not actually improve your eye's ability to focus. For that, you need to change the shape of your cornea. And the most accurate and effective cornea shaping technique available today is LASIK, the most advanced form of laser vision correction.
