Astigmatism causes blurring both near to and  in the distance. Astigmatism can be present alone or in eyes which are short or long sighted. We all have some, but it is usually insignificant. Astigmatism occurs when the surface of the eye is not a perfect curve, but more like a rugby ball or an egg. This creates blurring or distortion of vision. It may occur naturally or after cataract or laser surgery and this is a common problem for older patients.