Multiple sclerosis (MS) is an autoimmune illness. Your immune system will make the mistake of attacking healthy cells when you have these conditions. People who have multiple sclerosis have an immune system that assaults the cells that make up the myelin, which is a protective sheath that wraps around nerves in the brain and spinal cord. When the myelin sheath is damaged, nerve signals traveling from the brain to various regions of the body are garbled and disrupted. Because of the injury, you may experience symptoms that impact your eyes, spinal cord, and brain.