Irlen Syndrome Test

Learn in about 10 minutes whether visual stress may be driving reading discomfort. Get a clear 64 item snapshot of symptom patterns plus guidance on helpful next steps.
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Questions6410 minutes
Hi! My name is Freudly, i am an AI therapist, I will give you an interpretation of the test after you complete it.
08:30
March 25, 2026
March 25, 2026
Material has been updated
179 views
11 completions
49 likes
Verified by Daniel Hall
Psychologist with 25 years of experience
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How the Scales are Structured

example score
8/20
Light & Contrast Sensitivity (L&CS)
Assesses how strongly lighting and contrast conditions tend to trigger visual stress symptoms such as glare discomfort, headaches, or print distortion.
Low sensitivity
Moderate sensitivity
High sensitivity
06Low sensitivity713Moderate sensitivity1420High sensitivity
A score of 8 suggests a moderate level of light and contrast sensitivity, meaning certain lighting or high-contrast settings may sometimes contribute to reading or screen discomfort.
example score
21/NaN
Reading Discomfort Impact (RDI)
Assesses how strongly reading-related discomfort symptoms interfere with comfort, endurance, and everyday functioning while reading.
Low impact
Moderate impact
High impact
0NaNLow impact11NaNModerate impact21NaNHigh impact
A score of 21 falls in the High impact range, suggesting reading discomfort frequently affects reading stamina and comfort in day-to-day situations.
example score
21/40
Visual Stress Symptoms (VSS)
Measures how often and how strongly you experience visual stress symptoms while reading, such as glare sensitivity, print distortion, eye strain, and fatigue.
Low
Moderate
High
013Low1426Moderate2740High
A score of 21 falls in the Moderate range, suggesting a noticeable but not severe level of visual stress symptoms during reading.
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DATA-BASED USER COHORTS

Who Usually Takes This Test?

Struggling readers and students
41%OF USERS
People who find reading tiring or uncomfortable and notice headaches, glare, or words moving on the page take it to see if visual stress might be involved.
Parents of school-age kids
34%OF USERS
Parents use it when a child avoids reading, complains about the brightness of pages, or has inconsistent performance that doesn’t match their effort.
Adults with screen fatigue
25%OF USERS
Adults who get eye strain, migraines, or trouble focusing during office work or long screen sessions take it to check for patterns linked to sensitivity to light and contrast.
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
RESULTS YOU CAN ACTUALLY USE

Scale Results
— Explained Clearly
Your scores across each test scale are translated into plain, usable insights. You won’t just get numbers — you’ll learn how your results impact your daily life, emotional state, and overall well-being.
AI-Powered
Interpretation
You’ll receive a structured, clinically-grounded explanation. Our AI analyzes patterns and relationships between scales to provide a coherent interpretation, without exaggerated language.
Statistical
Comparison
See how your results compare to others. Anonymized platform data is used to create a percentile scale, which identifies whether your results are typical.
Practical
Recommendations
You’ll receive clear, actionable guidance tailored to your profile. These easy-to-implement suggestions focus on coping, self-regulation, and realistic next steps.
AI-Powered
Insights
Get insights on behavioral and thought patterns you might not notice on your own. By uncovering subtle connections between your responses, you’ll better understand what may be driving your current results.
Discuss with
an AI Therapist
Clarify, reflect, and explore your results right away. Talk through your experience, ask questions, and explore meanings in a calm, non-diagnostic dialogue.
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Used in 52+ countries
Benchmarking

See How You Compare

Once you complete the test, your results are compared with real-world data from people in your country.
Below is a preview of how scores are typically distributed across each scale.
Light & Contrast Sensitivity (L&CS)
Average
5.8
Normal range
2.98.6
min.
0
max.
20
Majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Reading Discomfort Impact (RDI)
Average
17.7
Normal range
12.422.9
min.
0
max.
30
Majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Visual Stress Symptoms (VSS)
Average
23.6
Normal range
17.829.5
min.
0
max.
40
Majority
This curve shows how scores are typically distributed.
Once you complete the test, your result will appear on the scale so you can see how you compare.
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CLEAR ANSWERS TO COMMON QUESTIONS

Frequently Asked Questions

What does this screening quiz measure?
It screens for self-reported patterns of visual stress that may affect reading, such as glare sensitivity, headaches, print distortion, and fatigue. Results indicate whether reported symptoms are consistent with visual processing sensitivity.
Is this a diagnosis?
No. The quiz is a screening tool and cannot confirm or rule out a medical or vision condition.
How long does it take and how many questions are included?
Estimated completion time is about 10 minutes. The quiz contains 64 questions.
How should responses be selected if symptoms vary by day or setting?
Select the option that best reflects typical experiences over time. Consider common reading situations, such as schoolwork, computer use, and print under bright lighting.
What should be done after receiving results that suggest visual stress?
Consider an eye examination to rule out refractive or ocular causes and discuss the findings with a qualified eye-care professional. If needed, seek evaluation from a specialist experienced in visual stress interventions.
WHAT THE TEST MEASURES
About This Assessment

Irlen Syndrome Test - Symptoms and Signs

Curious whether Irlen Syndrome—often described as visual stress or scotopic sensitivity—might be contributing to reading discomfort? This quick screening quiz asks about symptoms like glare sensitivity, headaches with reading, print distortion, and fatigue on the page. You’ll get a summary of patterns that may suggest visual processing sensitivity and ideas for next steps. This is not a medical diagnosis; for evaluation and support, consult a qualified eye-care professional or an Irlen-style specialist.

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