The muscles that move the eyes are controlled by cranial nerves that pass through the brainstem. The brainstem helps coordinate eye movement, so any damage to it may result in mixed signals to the eyes. This confuses your brain and can cause you to see double.ĭiplopia is common once MS begins to affect the brainstem. Diplopia, or double vision, occurs when the eyes send two images to your brain. In normally functioning eyes, each eye will transmit the same information to the brain for it to interpret and develop into an image. A different study found that the more severe the attack, the poorer the outcome. By comparison, 92 percent of Caucasians recovered their vision. African-Americans usually experience more severe vision loss, with one study showing only 61 percent vision recovery after one year. Most people have normal vision within two to six months of an acute episode of optic neuritis. The symptoms of pain and blurred vision may get worse for up to two weeks, and then begin to improve. For some people, optic neuritis may even be their first symptom of MS. That often means the symptoms will grow worse and your body may not return entirely to normal once the symptoms disappear.Īccording to the Multiple Sclerosis Trust, 70 percent of people with MS will experience optic neuritis at least once during the course of the disease. As MS grows worse, demyelination will become more widespread and chronic. Optic neuritis develops when MS begins to break down the protective coating surrounding your optic nerve. The greatest visual disturbance will likely be in the center of your field of vision but may also cause trouble seeing to the side. You may also experience mild pain or discomfort, especially when moving your eye. This effect might be described as a smudge in your field of vision. Optic neuritis causes blurry or hazy vision in one eye. Understanding what types of visual disturbances you may experience can help you prepare for living with them if they become permanent.Ĭommon visual disturbances caused by MS include: Optic neuritis The problems may grow worse and then disappear, or they may stick around. For individuals with MS, vision problems may come and go.
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