Irlen Syndrome Test - Free Online Screening

What is Irlen Syndrome?

Irlen Syndrome, also known as Scotopic Sensitivity Syndrome, is a perceptual processing disorder that affects how the brain processes visual information. It is not a problem with the eyes themselves, but with how the brain interprets visual signals. Note that the scientific validity of Irlen Syndrome (Scotopic Sensitivity Syndrome) remains debated in mainstream research, and reading discomfort can have many other causes — a professional eye examination is recommended first.

People with Irlen Syndrome may experience difficulties with reading, light sensitivity, depth perception, and visual stress. The condition can affect people of all ages and often co-occurs with other conditions like dyslexia, ADHD, and autism.

About This Screening

This screening covers key areas often affected by Irlen Syndrome including light sensitivity, reading difficulties, visual stress, and physical symptoms.

References

• Irlen H. (2010). The Irlen Revolution: A Guide to Transforming Your Reading, Writing, and Learning. Square One Publishers.
• Kriss I, Evans BJW. (2005). The relationship between dyslexia and Meares-Irlen Syndrome. Journal of Research in Reading, 28(3), 350-364.
• Irlen Institute. (2020). Understanding Irlen Syndrome.
• Robinson GL, Conway RNF. (2000). Irlen lenses and adults: A small scale study of reading speed, academic achievement and self-concept. Australian Journal of Learning Disabilities, 5(1), 4-13.