Some individuals with MS may experience a scotoma, a disorder that causes a blind spot to appear in the center of vision. A different disorder, homonymous hemianopsia, occurs rarely, causing vision to be lost on the right or left visual fields of both eyes.

What does MS vision look like?

A common visual symptom of MS is optic neuritis — inflammation of the optic (vision) nerve. Optic neuritis usually occurs in one eye and may cause aching pain with eye movement, blurred vision, dim vision, or loss of color vision. For example, the color red may appear washed out or gray.

What vision problems does MS cause?

A problem with vision is one of the most common symptoms of MS, and often one of the first that people with MS notice. The symptoms can include blurred vision, double vision (diplopia), optic neuritis, involuntary rapid eye movement and occasionally, a total loss of sight.