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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 usually the result of an irregular shaped cornea or lens the cornea is the transparent layer of tissue at the front of the eye the cornea should be regularly curved like the surface of a football but in cases of astigmatism it has an irregular curve more like the shape of a rugby ballegular 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