What is stigmatism definition?

Astigmatism is a common eye condition that causes blurry or distorted vision. It occurs when the cornea, the clear outer layer of the eyeball, is not perfectly round but instead has a slightly oblong or egg-shaped curve. This uneven surface causes light to be refracted in different directions, resulting in images that are not clear and sharp. Astigmatism can also occur when the lens inside the eye is irregularly shaped. Many people have some degree of astigmatism, and it can be corrected with glasses, contact lenses, or surgery. Symptoms of astigmatism can include headaches, eye strain, and difficulty reading or seeing details. It is important to have regular eye exams to detect and correct any vision issues, including astigmatism.