How does MS affect eyesight?
Vision problems are very common in MS and often appear as one of the first symptoms. More than 50% of people with MS report at least five different vision issues.
The most common cause is optic neuritis, which is inflammation of the optic nerve that sends signals from your eyes to your brain Show Full Answer
How does MS affect eyesight?
Vision problems are very common in MS and often appear as one of the first symptoms. More than 50% of people with MS report at least five different vision issues.
The most common cause is optic neuritis, which is inflammation of the optic nerve that sends signals from your eyes to your brain. When this nerve becomes inflamed, it can't send signals effectively, leading to various visual problems.
Here are the main ways eyesight can be affected:
- Blurred vision (usually in one eye)
- Double vision (diplopia)
- Loss of color vision (colors may appear gray or washed out)
- Light sensitivity (photophobia) - bright lights from cars, houses, or screens can hurt your eyes
- Eye pain, especially when moving your eyes
- Dark or blind spots in your vision (scotoma)
- Difficulty with depth perception, making stairs or reaching for objects challenging
- Vision that shifts from very dark to very bright
- Floaters or seeing spots
About 15-20% of people with MS first notice optic neuritis as their initial symptom. Around half of all people with MS will develop optic neuritis at some point.
The good news is that most people recover their vision after an episode of optic neuritis, though some may have lingering effects like reduced depth perception or light sensitivity.
If you're experiencing any vision changes, it's important to contact your neurologist or eye doctor right away for proper evaluation and treatment.
October 25, 2025
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