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Multiple sclerosis (MS) affects the central nervous system, changing the way the brain interacts with the rest of the body and causing a host of serious symptoms. The root cause of MS is still widely unknown, though some experts believe unidentified environmental factors play a role. The disease affects people in different ways. The signs and symptoms of MS vary greatly among affected individuals.

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1. Vision Issues

Vision issues such as blurred or double vision are an early warning sign of multiple sclerosis. Some people report temporary blindness, as well. Many also see floaters -- floating dark spots that cloud the vision -- or dark shadows that appear to move when the individual blinks or attempts to moisten his or her eyes. Sometimes these issues can lead to dizzy spells when one has difficulty bringing views into focus.

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other health-care professional.