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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 characterized by abnormalities in the curvature of your eyes. This can cause your vision to blur. It is mild and it can be treated easily. The front surface of your eye is called the cornea. The inside of your eye is referred to as the lens. When the inside of your eye has a difference curvature from this front surface, there will be astigmatism. The surface of your eye should be smooth but with astigmatism, there will be some areas that are flatter and some areas that are steeper.