RELATED: This Was the First Sign of MS Sopranos Star Jamie-Lynn Sigler Noticed. For many MS patients, inflammation of the optic nerve, also known as optic neuritis (ON), is a common and often early symptom. The optic nerve connects the eye to the brain, which is what allows you to interpret visual information, the experts at Johns Hopkins Medicine explain. However, when the nerve is inflamed, it can lead to blurry or temporary loss of vision and pain in your eye. In a 2016 study published in the journal Eye and Brain, author and researcher Nilufer Kale details how 90 percent of patients with ON experience eye pain before a loss of vision. Kale also notes that ON is the initial indication of MS for 20 percent of patients. RELATED: If You Notice This With Your Hands, It Could Be an Early Sign of MS. Other visual issues can also come with MS. In a study published in the journal Neurology and Therapy this past June, researchers explain how people with MS can experience loss of or reduced color vision, difficulties when moving their eyes, and a reduced ability to detect objects’ differences brightness. As noted by The National Multiple Sclerosis Society (NMSS), patients with MS can also experience nystagmus, which causes the eye to move uncontrollably, making it “feel like the world is moving.” Along with that, seeing double, known as diplopia, can occur in MS patients when their eyes are inflamed. Diplopia and nystagmus can also lead to other MS symptoms, including feeling off-balance and lightheaded. “Added to a little bit of leg weakness or gait imbalance, and these vision problems can increase one’s safety risk,” Elliot Frohman, MD, associate professor of neurology and director of the MS Program at the University of Texas, Southwestern Medical Center told NMSS. RELATED: For more health content delivered straight to your inbox, sign up for our daily newsletter. Vision problems are extremely common for MS patients, whether they’re newly diagnosed or have lived with MS for years. In fact, 50 percent of people with MS develop visual impairments at some point during their disease, as noted by John Hopkins Medicine. Like other MS symptoms—which include difficulty walking and numbness or tingling in the body—these visual symptoms affect each patient differently. In a 2013 study published in The Multiple Sclerosis Journal, researchers examined the severity of visual impairments among 9,107 patients in the North American Research Committee on Multiple Sclerosis. Their findings showed that nearly 67 percent had a visual disability and 43 percent reported having a history with ON. A group of researchers known as the Optic Neuritis Study Group examined ON patients for more than 15 years and published their findings in 2007. They discovered that medications, like corticosteroids, could help people with ON quickly recover from their visual symptoms and even delay MS from developing. The NMSS says that steroids are also recommended as a form of treatment for nystagmus and diplopia.ae0fcc31ae342fd3a1346ebb1f342fcb Fresnel lenses, a prism in eyeglasses that helps reduce blurriness, or simply covering your eye are alternative treatments to persistent diplopia. “Patching an eye will not affect the vision in any way and will not delay recovery to any significant degree,” Thomas R. Hedges, MD, professor of ophthalmology and neurology at Tufts University School of Medicine and the director of neuro-ophthalmology at the New England Medical Center, told NMSS. “The brain always tells both eyes to move at once.” Hedges said that when medications aren’t working for constant nystagmus, there aren’t many other alternatives. One form of treatment has been to give patients the highest possible prescription for their glasses, and on rare occasions, surgery and botox injections are also used. RELATED: If You Notice This While Walking, It May Be an Early Sign of MS.