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However, in some cases it can cause troublesome vision distortion. Here are the most common signs and symptoms of astigmatism: 1  Blurring or distortion of images at all distances. 2  Headache. 3  Fatigue. 4  Squinting. 5  Eye discomfort or irritation. 6  Difficulty seeing at night.
Astigmatism is a common and usually minor eye condition that causes blurred or distorted vision. It occurs when the cornea or lens isn't a perfectly curved shape. Many people who wear glasses have some degree of astigmatism. Astigmatism belongs to a group of related eye conditions known as refractive errors.egular astigmatism is where the cornea is curved more in one direction than the other. It's more common than irregular astigmatism and can be corrected with glasses or contact lenses. Irregular astigmatism is where the curvature of the cornea isn't even across the surface of the eye.