Which visual perturbation is most likely to occur in cases of astigmatism?

Blurry vision is the most common visual perturbation associated with astigmatism. This condition arises from an irregular shape of the cornea or lens, which leads to a distortion of light entering the eye. Instead of focusing on a single point, light rays are refracted in multiple directions, often resulting in blurred or distorted images at any distance. This visual distortion is a hallmark symptom of astigmatism, and individuals might experience difficulty seeing fine details clearly.

Other visual disturbances, such as color distortion, night blindness, and complete blindness, are not characteristic of astigmatism. While other eye conditions can lead to those symptoms, astigmatism specifically manifests as blurry vision due to its effect on the eye's focal abilities. Therefore, recognizing blurry vision as the primary symptom is crucial for understanding and identifying astigmatism effectively.