A condition in which the surface of the cornea is not spherical, but is irregularly shaped like the back of a spoon. An astigmatic cornea causes light images to focus on two separate points in the eye, creating a distorted image. Symptoms range from visual discomfort in mild cases, to severe blurring, ghosting, and distortion similar to a reflection in a fun-house mirror. The amount of astigmatism you have will appear in the second number of most glasses prescriptions. The angle of direction (cylinder meridian or axis) of the astigmatism will be shown in degrees. A prescription of -4.00-1.00x30°, would indicate that you have 1.00 diopter of astigmatism at 30 degrees axis.