Which symptom of Multiple Sclerosis involves visual disturbances, such as blurred vision or loss of vision?

Optic neuritis is a significant symptom of Multiple Sclerosis (MS) that specifically pertains to visual disturbances, including blurred vision or loss of vision. This condition occurs when the optic nerve becomes inflamed, which is often associated with MS due to the demyelination process affecting the central nervous system.

Patients experiencing optic neuritis may report sudden vision loss in one eye, pain during eye movement, and changes in color perception. Understanding this connection is critical, as it helps clinicians recognize a potential MS diagnosis, particularly in patients presenting with such visual symptoms.

The other options, such as peripheral neuropathy, involve sensory or motor nerve dysfunction primarily affecting the limbs, while diplopia concerns double vision caused by issues with the muscles controlling eye movement, which is a different visual disturbance. Tinnitus relates to auditory phenomena and does not pertain to visual symptoms at all. Thus, optic neuritis is the most relevant answer concerning the visual implications of Multiple Sclerosis.