What is Astigmatism?
Astigmatism is an imperfection in the curvature of the cornea or lens of the eye. Normally, the cornea and lens are smooth and curved equally in all directions. This helps to focus light rays sharply onto the right location on the retina at the back of the eye. If there is an imperfection in the curvature of the cornea or lens, the light rays aren't refracted properly resulting in Astigmatism.
When the cornea is irregular, it is known as corneal astigmatism. When the shape of lens is distorted, it is called lenticular astigmatism. In either case, the vision for both near and far objects is blurry or distorted.
People may have astigmatism along with other refractive errors such as myopia.
Children with astigmatism may not be aware they have this condition and are unlikely to complain about blurred or distorted vision. Uncorrected astigmatism can impact a child's ability to achieve in school and activities like sports. So it is important that regular eye exam be conducted in children.