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.
08:30
Scale Explorer
How the Scales are Structured
DATA-BASED USER COHORTS
Who Usually Takes This Test?
BASED ON AGGREGATED, ANONYMIZED DATA FROM TENS OF THOUSANDS OF FREUDLY USERS.
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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.
Below is a preview of how scores are typically distributed across each scale.
Light & Contrast Sensitivity (L&CS)
Light & Contrast Sensitivity (L&CS)
Average
5.8
Normal range
2.9 — 8.6
min.
0
max.
20
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.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Reading Discomfort Impact (RDI)
Reading Discomfort Impact (RDI)
Average
17.7
Normal range
12.4 — 22.9
min.
0
max.
30
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.
Once you complete the test, your result will appear on the scale so you can see how you compare.
Visual Stress Symptoms (VSS)
Visual Stress Symptoms (VSS)
Average
23.6
Normal range
17.8 — 29.5
min.
0
max.
40
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.
Once you complete the test, your result will appear on the scale so you can see how you compare.
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SAMPLE QUESTIONS
Example Questions From the Test
- Strongly disagree
- Disagree
- Agree
- Strongly agree
- Strongly disagree
- Disagree
- Agree
- Strongly agree
- Never
- Sometimes
- Often
- Almost always
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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