What is a common visual symptom associated with multiple sclerosis?

Blurred vision is a common visual symptom associated with multiple sclerosis (MS). This occurs due to the demyelination of the optic nerve, which impairs the transmission of visual information. Patients with MS may experience various types of visual disturbances, but blurred vision is particularly notable because it can indicate inflammation or damage to the optic pathways in the brain. This symptom can be episodic, often appearing during exacerbations of the disease and may vary in intensity from person to person.

Understanding blurred vision in the context of MS helps in recognizing how the disease affects the central nervous system and can lead to other visual issues as well. While other options like color blindness, heightened sensitivity to light, and night blindness may occur in various conditions, they are not as directly associated with multiple sclerosis as blurred vision is.