Visual Symptoms

Visual symptoms are common in people living with multiple sclerosis (MS) and may sometimes be one of the earliest signs of the condition. Changes to vision can be upsetting, but many MS-related visual symptoms are temporary and improve over time. Understanding what is happening and knowing when to seek help can make a significant difference.

How MS affects vision

MS affects the central nervous system, including the optic nerves and the parts of the brain that control eye movement. When inflammation or damage (demyelination) affects these pathways, the signals between the eyes and the brain can be disrupted, leading to changes in how you see.

Not all vision problems experienced by people with MS are caused by MS itself, which is why new or changing symptoms should always be checked by a health professional.

Common visual symptoms in MS

Optic neuritis

Optic neuritis is the most common MS-related eye condition. It occurs when the optic nerve becomes inflamed.

Symptoms may include:

  • Blurred or dim vision, usually in one eye
  • Pain behind the eye or discomfort when moving the eye
  • Loss or fading of colour vision (often reds appear dull)
  • Blind spots or patches of missing vision

Symptoms often develop over hours or days and usually worsen before improving. Many people experience good recovery over several weeks, although subtle changes may persist, particularly when tired, stressed, or overheated.

Double vision (diplopia)

Double vision happens when MS affects the nerves that control eye movements, causing the eyes to work out of sync.

What this can look like:

  • Seeing two images side by side or one above the other
  • Difficulty judging distances
  • Increased dizziness or balance problems

Double vision may come and go and often improves on its own, especially if it occurs during a relapse.

Involuntary eye movements (nystagmus)

Nystagmus involves uncontrolled movements of the eyes, which may move side to side, up and down, or in a rotating pattern.

Possible effects include:

  • Blurred or unstable vision
  • A sensation that the world is moving (oscillopsia)
  • Dizziness, nausea, or problems with balance

Some people are not aware their eyes are moving, but the effects on vision can still be significant.

Other visual changes

Some people with MS experience more subtle or intermittent changes, such as:

  • Vision that worsens with heat, exercise, or fever, then improves with cooling (often called Uhthoff’s phenomenon)
  • Reduced contrast sensitivity
  • Difficulty tracking moving objects
  • Increased visual fatigue

These changes are usually temporary but can affect daily activities.

When to seek help

You should contact your GP, neurologist, MS nurse, optometrist, or ophthalmologist if you experience:

  • New or worsening vision loss
  • Eye pain, especially with movement
  • Double vision
  • Faded colours or blind spots

Early assessment can help determine whether inflammation is present and whether treatment may speed recovery.

Assessment and treatment

Treatment depends on the type and severity of visual symptoms.

  • Optic neuritis may improve without treatment, but steroids are sometimes used to reduce inflammation and speed recovery in more severe cases.
  • Double vision may be managed with temporary strategies such as eye patching or prism lenses, alongside medical treatment if needed.
  • Nystagmus can be difficult to treat, but some medications, visual strategies, and head-position adjustments may help reduce symptoms.

Your healthcare team will work with you to decide the most appropriate approach.

Practical tips for managing visual symptoms

  • Take regular breaks to rest your eyes
  • Use good lighting and reduce glare where possible
  • Adjust screen settings, such as increasing text size or contrast
  • Use voice-activated or accessibility features on devices
  • Let family, friends, or colleagues know if your vision is affected
  • Keep up with regular eye checks, especially if you wear glasses

Support services, assistive technology, and vision-rehabilitation strategies can help you stay independent and confident. For further information about local support contact your regional society.

Living well with visual symptoms

Many people with MS experience changes to their vision at some point, but most symptoms are manageable and often improve with time, treatment, and support. If visual symptoms are affecting your quality of life, talk with an optometrist, your MS care team, or contact your regional MS society for information, resources, and support.

What visual symptoms are common in MS?
  • Your clinician may refer you to an ophthalmologist (eye specialist), and sometimes to a neurologist, for diagnosis and management.
  • Optic neuritis: Often managed with corticosteroids if symptoms are severe or affecting daily activities; most people regain normal or near-normal vision within weeks to months.
  • Double vision: May resolve on its own or be helped by prism glasses, medications, or covering one eye temporarily.
  • Nystagmus and movement/instability: Sometimes managed with medication, but may need tailored strategies to reduce impact.
  • Environmental and practical support: Specialists can recommend changes at home (better lighting, high-contrast labels, screen readers) or refer you to Blind Low Vision NZ if necessary
  • Use lamps that focus light on tasks and minimise glare.
  • Adopt high-contrast labels, utensils, and home organisation systems.
  • Try tactile markings (Velcro dots, textured tape) to identify objects and settings.
  • Use electronic devices with large buttons, voice activation, or screen magnification features.
  • Reorganise shelves and storage so most-used items are easy to find.
  • Mark clothing and shoes for easier matching.

  • For kitchen safety, try long oven mitts, coloured chopping boards, and measuring cups with large, contrasting numbers.

These visual changes are usually temporary and improve over weeks or months, though some people may have longer-lasting changes. Not all vision changes are due to MS, so let your healthcare provider know about any new symptoms.

Looking after yourself

Keep regular appointments with your eye specialist or optometrist, especially if you wore glasses pre-diagnosis.

Ask about local services or support organisations, such as Blind Low Vision NZ, for extra resources or technology training.

Let friends and family know about your vision changes so they can help when needed.

Use electronic devices with large buttons, voice activation, or screen magnification features.

Many people with MS will encounter visual symptoms—sometimes as an early sign, sometimes later on. Most problems are manageable and may improve over time. Don’t hesitate to involve your medical and support team with any new issues. Practical changes at home and work, plus early healthcare engagement, will help maintain confidence and independence.

General Information

Living with visual disturbances can be challenging, but support is available.

Symptom Management