Astigmatism is a common vision condition caused by an irregular shape of the cornea or lens in the eye. Instead of being perfectly round, these surfaces are more oval, which leads to blurred or distorted vision at any distance. People with astigmatism may find it difficult to see fine details, making activities like reading or driving challenging. This condition can occur alongside other vision problems, such as nearsightedness or farsightedness. It is usually diagnosed during a routine eye exam, and treatment options include corrective lenses, such as glasses or contact lenses, and sometimes surgery to reshape the cornea for clearer vision.