optic neuritis

Have you ever been on a flight of stairs and misjudged the height of the steps, causing you to lose your footing? That happens to me more than I’d like to admit. This misjudgment stems from our depth perception, which is our ability to view the world in three dimensions,…

OCS-05, an experimental medication that Oculis is developing to treat acute optic neuritis, a common symptom of multiple sclerosis (MS) that can lead to vision loss, was well tolerated and improved measures of vision and eye health in a Phase 2 clinical trial. The ACUITY study (NCT04762017) included…

My adolescent years can be characterized by a series of naps, long-lasting migraines, always being sick, and never being able to donate blood, which my family and I never understood. My journey with multiple sclerosis (MS) started long before my diagnosis in 2016. Let me set the…

A model based on genetic factors could help predict the risk of developing multiple sclerosis (MS) in people with optic neuritis, an eye disorder that can be an early sign of MS, according to new research. “As a doctor caring for many patients with optic neuritis, I’m excited by…

OCS-05, a neuroprotective treatment candidate being developed by Oculis for multiple sclerosis (MS) or other causes of optic nerve inflammation, demonstrated a favorable safety and pharmacological profile in healthy volunteers, according to Phase 1 trial data. A Phase 2 trial (NCT04762017), called ACUITY, is now evaluating OCS-05’s…

Researchers have developed a set of criteria to diagnose optic neuritis (ON) — inflammation in the nerve fibers sending signals to and from the eye — and identify whether it is caused by multiple sclerosis (MS) or other conditions. The criteria, developed by an international group of specialists,…

Trethera has been awarded a $1.6 million grant to further develop TRE-515 as a potential treatment for optic neuritis — inflammation of the nerves that transmit data from the eyes to the brain — which also is a common symptom of multiple sclerosis (MS). TRE-515 is a first-in-class…

The U.S. Food and Drug Administration (FDA) has granted orphan drug designation to Trethera Corporation’s experimental oral therapy TRE-515 for demyelinating optic neuritis, an eye condition that may progress to multiple sclerosis (MS) or occur during the disease course. The first-in-class therapy is expected to lessen the inflammation…

After a relapse involving optic neuritis, or inflammation in the nerves connecting the eyes and brain, measurements of retinal thinning may predict the likelihood of full recovery from future relapses in people with multiple sclerosis (MS), a study suggests. The measurement could identify subclinical nerve cell damage that remains…

As anyone with chronic illness knows, leaving the house requires planning. There’s much more to think about than what’s visible, especially if you’re relying on public transport. In the days preceding last week’s appointment with my multiple sclerosis (MS) nurse, I was contemplating just how long it’d been since…

Imagine this scene: There’s a rowdy crowd of nearly 40,000 people in a rugby stadium with music blaring over the Tannoy speakers. Newfound numbness spreads throughout the majority of your body, and on top of that, you can hardly see. That was the perfect myriad of factors to elicit my…

In relapsing-remitting MS, relapses and exacerbations involve a worsening of symptoms or the appearance of new ones for 24 hours or more. My disease baseline has changed many times over the years, but has never returned to how it was before my symptoms began. I’m intrigued by how…

Visual disturbances are common in people with multiple sclerosis (MS), particularly among those with secondary progressive MS (SPMS), longer disease duration, and worse disability status, a new study has found. Yet, “visual complaints may occur in people with all types of MS, anytime along the disease course, and…

An MS Society survey found that about one-third of people with multiple sclerosis (MS) in the U.K. have kept their condition hidden from their partner, family members, employer, or work colleagues. To help mark MS Awareness Week, observed in the U.K. April 19–25, the nonprofit organization released…

An antibody analysis has identified two biomarkers that can be used to predict the development of multiple sclerosis (MS) in people with optic neuritis, a study reports.  Further research is, however, required to validate these findings…

Endothelin-1 (ET-1) — a molecule with potent blood vessel-narrowing (vasoconstrictive) properties — may be used as a biomarker of severity for optic neuritis in people with multiple sclerosis (MS), a small Italian study suggests. The molecule also may be a potential indicator of patients’ failure to recover…

The percentage of Taiwanese who develop multiple sclerosis (MS) after an episode of clinically isolated syndrome (CIS) is lower than that reported for other ethnicities, and those who do progress are likely to have a milder disease course, a study found, supporting how factors like geography and genetics…

A study of Iranian patients with early-onset multiple sclerosis (MS) found women to be in the majority, optic neuritis to be the most common first disease symptom, and relapsing-remitting MS the most frequent disease course. The epidemiology of early-onset MS (typically, MS diagnosed before age 16; age 18 was the benchmark…

Treating mice in a model of multiple sclerosis (MS) with laquinimod before the onset of symptoms eased inflammation so as to help preserve their vision — lessening damage to the optic nerve and retina, a study from Germany reports. The study, “Laquinimod protects the optic nerve and…

Exposure to epsilon toxin (ETX), which is mainly found in livestock, could be linked to the development of multiple sclerosis (MS), new research suggests. The study, “Evidence of Clostridium perfringens epsilon toxin associated with multiple sclerosis,” appeared in the Multiple Sclerosis Journal. ETX is one of…

Editor’s note: Tamara Sellman continues her occasional series on the MS alphabet with this column referencing terms starting with the letter “O.” Symptoms of MS Optic neuritis This is a common symptom of MS, though not everyone who experiences optic neuritis…

People with a demyelinating disease associated with antibodies against a myelin oligodendrocyte glycoprotein (MOG), most often develop episodes of optic neuritis (inflammation of the optic nerve) that can be treated with corticosteroids, according to data presented today at the 7th Joint ECTRIMS-ACTRIMS Meeting from Oct. 25-28 in Paris. MOG antibody-associated demyelination is a…

Structural changes of the eye retina are a common feature among multiple sclerosis patients with a clinical history of optic neuritis, a Danish study finds. Loss of the myelin protective layer of optic nerve cells due to inflammation causes optic neuritis. About 20 percent of MS have it, and optic neuritis is a symptom of disease progression in about 40 percent of patients. In most cases, symptoms persist, leading to visual impairment or blindness, along with pain. Non-invasive optical coherence tomography can help evaluate neurodegeneration of optic nerve cells. This imaging technique allows a three-dimensional evaluation of internal eye structures, including the thickness of the retina nerve fiber layer. Previous studies have shown that MS patients may present progressive RNFL loss, but this can also be caused by optic neuritis. The use of OCT has been proposed to distinguish MS subtypes and evaluate disease activity. However, little clinical data is available to validate OCT's accuracy and potential as a diagnostic tool. To find out more, a Danish research team conducted a long-term evaluation of structural and functional visual outcomes in MS patients with and without a history of optic neuritis. Researchers observed that patients with a history of optic neuritis had significantly more RNFL thickness loss than those without optic neuritis. They linked reduced RNFL thickness with a 1.56 times higher risk of optic neuritis development. Nevertheless, the team did not find any association between optic neuritis and functional impairment of visual acuity or color vision. Use of high-resolution OCT devices coupled with up-do-date analysis software can improve the diagnostic efficacy of this imaging technique in MS patients, said researchers, who urged more studies to address the relevance of structural changes in MS.

I was watching my son’s baseball game in the early 1990s when suddenly, my left eye went blurry and blocked my vision. It was a startling incident that lasted about two hours, and then it was gone. That was my introduction into the unpredictable world of multiple sclerosis…

Researchers have tested a new compound called ST266 in a mouse model of multiple sclerosis (MS) and found that its anti-inflammatory properties prevent the loss of cells related to optic neuritis — a condition that leads to vision loss. The study, “Intranasal Delivery of a Novel Amnion Cell Secretome Prevents…

A treatment delivered as a nasal solution helped to preserve eye neurons and improve eyesight in a mouse model of multiple sclerosis (MS), a recent study demonstrated — suggesting that it may be possible to deliver drugs that target the brain in this noninvasive way. But nasal administration is not the only…

Genetically silencing the transcription factor Nrf2 in a mouse model of multiple sclerosis (MS) results in visual deficits, inflammation of the optic nerve, and degeneration of the retinal ganglion cells (RGC), according to a study published in the scientific journal Molecular Vision.

Optic neuritis is one of the symptoms of which those of us who live with multiple sclerosis on a daily basis know can set us apart from others. We are fully, and often painfully, aware that everyone is different. We all experience a different array of symptoms to similarly different…

A Phase 2 clinical trial testing the efficacy of a common antihistamine, clemastine fumarate, to treat optic nerve damage in people with multiple sclerosis (MS) found the drug able to slightly reverse damage to their visual system. The  study, conducted by researchers at the Multiple Sclerosis Center at the University of California San…

Researchers from the University College London (UCL) found that the anti-convulsant drug phenytoin protected neural tissue in patients with optic neuritis — often the first symptom of multiple sclerosis (MS) — a condition that causes the nerves carrying information between the eyes and the brain to become inflamed and progressively damaged. The study…