Astigmatism is extremely common and often misunderstood. It is when the cornea (front surface of the eye) or the lens (inside the eye) has a difference in its curvature from one direction to the other. It can cause glare when driving at night and a shadowy quality to vision as well. It can often be easily corrected with glasses or contact lenses. Eye See Vision Center can help you choose the best way to correct your astigmatism for your lifestyle.