Astigmatism is a type of focusing error or refractive error of the eye. Technically speaking, when a person looks at a point object, he is not looking it as a point, but as a line. Why this happens is because the curvature of the cornea is irregular. When the corneal curvature is too steep, then the focusing points come and lie in front of the retina, or the projector part or the projector screen of the eye. This condition leads to myopia or short sightnedness. When the lights, they focus behind