Lyme Disease Eye Symptoms: Vision Problems and Light Sensitivity
Lyme disease can affect your vision.
Symptoms include light sensitivity and blurred vision.
These changes may signal neurologic involvement.
Can Lyme disease affect your eyes?
Yes. Lyme disease can cause a range of eye symptoms, including light sensitivity, blurred vision, double vision, and difficulty seeing in low-contrast environments.
These symptoms are often mistaken for eye strain—but may reflect neurologic involvement.
Some patients also experience subtle visual processing problems that interfere with reading, driving, and daily activities.
Common Lyme Disease Eye Symptoms
Eye symptoms linked to Lyme disease may include:
- Light sensitivity (photophobia)
- Blurred or fluctuating vision
- Double vision (diplopia)
- Difficulty reading or focusing
- Headaches with visual strain
- Dizziness or balance problems
- Trouble seeing clearly in dim light
- Eye discomfort or pressure
These symptoms may come and go and are often mistaken for other conditions.
Contrast Sensitivity Loss in Lyme Disease
One lesser-known problem is reduced contrast sensitivity—the ability to distinguish objects from their background.
This is especially important in situations such as night driving, fog, or glare.
Patients may notice this as difficulty driving at night or seeing clearly in dim light.
In a study of patients with post-treatment Lyme disease (PTLD), contrast sensitivity impairment was associated with a 2.6-fold increased likelihood of being in the PTLD group.
This suggests that visual processing changes may reflect underlying neurologic involvement.
Why Vision Problems Occur in Lyme Disease
Lyme disease can affect the nervous system, including pathways involved in vision.
Visual symptoms may be related to:
- Neuroinflammation
- Cranial nerve involvement
- Autonomic dysfunction
- Central processing changes in the brain
This helps explain why visual symptoms often occur alongside brain fog and dizziness.
Visual symptoms in Lyme disease are often neurologic—not just eye-related.
Case Examples of Eye Problems in Lyme Disease
Case reports show how Lyme disease can affect vision:
- A young woman developed headaches, double vision, light sensitivity, dizziness, and difficulty reading.
- A 46-year-old woman experienced sudden bilateral vision loss and neurologic symptoms.
- A child presented with rapid, erratic eye movements (opsoclonus), which resolved after treatment.
These cases show that eye symptoms can range from subtle visual strain to severe neurologic complications.
When to Consider Lyme Disease in Eye Symptoms
Lyme disease should be considered when visual symptoms occur along with:
- Fatigue
- Brain fog
- Headaches
- Dizziness
- Neurologic symptoms
Learn more: Lyme disease symptoms guide
Clinical Takeaway
Lyme disease can affect vision in both subtle and significant ways.
Symptoms such as light sensitivity, blurred vision, and contrast sensitivity loss may reflect neurologic involvement rather than a primary eye disorder.
Recognizing this pattern can help avoid missed or delayed diagnosis.
Dr. Daniel Cameron, MD, MPH
Lyme disease clinician with over 30 years of experience and past president of ILADS.
Symptoms • Testing • Coinfections • Recovery • Pediatric • Prevention
Poor contrast sensitivity is also associated with biotoxin illness, most often from mold growth in water damaged buildings. There is a subgroup of patients, about 25%, who genetically lack the ability to clear these toxins, even after leaving the building. Severe inflammation and immune dysregulation develop. Such patients have difficulty clearing tick borne infections, despite aggressive treatment. It is also difficult to distinguish between symptoms of ongoing Lyme disease and biotoxin illness. It is possible that some patients with PTLD are living or working in moldy environments. It is also possible that Lyme alone could cause changes in contrast sensitivity, as it also is inflammatory and affects the nervous system. A definitive test to detect on going infection would help greatly.