Those who have MS display a difficulty controlling movements. The cause of multiple sclerosis is not known. Myelin serves as insulation for the nerve fiber, allowing proper transmission of electrical signals to and from the brain. Areas where the myelin has been destroyed are called plaques. The symptoms experienced by people afflicted with MS depend on where the plaques are located.
Most researchers believe the loss of myelin is related to a virus or autoimmune process.
Autoimmune process is simply defined as the body attacking itself. The process or mechanism that triggers this attack in MS is not yet known. Multiple sclerosis has a variety of symptoms that can occur. Commonly, vision will become blurred or doubled in one eye, or the patient may experience pain, involuntary jerking or movement of the eye. The symptoms may or may not be the same with each different episode.