• Do-you-Have-poor-concentration
  • When-reading-do-you
  • Irlen-Spectral-Filters-help-people
  • Signs & Symptoms of Irlen Syndrome

    People with Irlen Syndrome/SSS can have difficulty with one or more of the following:

    • Light Sensitivity
    • Reading Difficulties
    • Poor Comprehension
    • Distortions with Print
    • Eye Strain / Visual Stress
    • Concentration Issues
    • Headaches / Migraines
    • Fatigue
    • Behaviour Problems
    • Depth Perception Difficulties


    more info irlen com - Sydney Irlen Dyslexia Centre


The Sydney Irlen Dyslexia Centre specialises in assessing children and adults for the visual processing dysfunction, Irlen Syndrome / Scotopic Sensitivity Syndrome (SSS). This condition causes difficulties in the areas of: Reading, Spelling, Mathematics and Concentration, and is commonly found in those with Dyslexia.

Irlen Syndrome / SSS can contribute to a variety of difficulties including - delays in learning, reduced academic and work performance, frustration, behaviour problems, low self esteem, anxiety and work avoidance. 

What is Irlen Syndrome / SSS?

Irlen Syndrome, also known as Meares-Irlen Syndrome, Scotopic Sensitivity Syndrome (SSS) or Visual Stress, is a visual processing dysfunction which affects approximately 10 - 20% of the population. It is not an optical problem but a problem with how the brain processes visual information it receives from the printed page and the environment.

Irlen Syndrome / SSS is a light sensitivity condition which cannot be tested or identified through standard psychological, educational, medical or optometric testing, but it may co-exist with optical problems.

Assessments for this brain processing dysfunction can only be carried out by certified Irlen Syndrome Diagnosticians, trained in the Irlen Method. Optometrists are unable to treat this condition.

  • When reading do you:

    • Skip words or lines?
    • Lose your place?
    • Repeat lines?
    • Use a finger or marker to keep your position?
    • Find words blur or move?
    • Need to reread for understanding?
    • Experience eye strain? 
    • Rub your eyes?
    • Find the page bright/glary?
    • Lose concentration?
    • Get headaches?
    • Fatigue easily?