Irlen™ Syndrome

Irlen™ Syndrome, also known as Scotopic Sensitivity Syndrome, is a perceptual processing disorder caused by the brain's inability to process specific wavelengths of light.


  • 12-14% of the general population

  • 46% of individuals with reading and learning difficulties

  • 33% with ADD/ADHD

  • 33% with autism

  • 55% with head injury, concussion or whiplash


People with Irlen™ Syndrome:

  • Live with higher than normal stress

  • Visual perceptual system is not normal

  • Miss or perceive things differently, which is often interpreted as stupidity or incompetence

  • Mistakes are made several times a week or sometimes several times a day with most not knowing why (Irvine, J.H. 1997)


  • Changes perception

  • Reduces/relieves physical symptoms like headaches, dizziness, stomachaches and fatigue

  • Improves feelings of calmness and general well being

  • Increases ability to handle paperwork, complete reading and work assignments and participate in daily activities

  • Increases likelihood of appropriate reactions to difficult situations

  • Increases sense of competency

  • Increases feelings of self-worth

Irlen™ COLOR INTERVENTION helps children and adults suffering from reading and learning problems including:

  • ADD/ADHD, Autism and Aspergers Syndrome

  • Behavioral and Emotional Problems

  • Migraines, IBS, fatigue and other physical symptoms

  • Light Sensitivity/Photophobia

  • Traumatic Brain Injury (TBI), whiplash, and concussion

  • Certain medical and visual conditions

(*Single Photon Emission Computerized Tomography)
SPECT scans of the brains of people with Irlen™ SYNDROME indicate:

  • Cortex perfusion consistent with Generalized Anxiety Disorder

  • Increased thalamic-limbic perfusion consistent with Mood Swings

  • Decreased perfusion in prefrontal cortex associated with ADD/ADHD

  • Increase in basal ganglia perfusion and insular cortex consistent with Generalized Anxiety Disorder

  • Increased perfusion in anterior cingulate, basal ganglia and limbic systems associated with PTSD (Dobrin, R. 2005)

Irlen™ LESSONS from SPECT:

  • Spectrum Subtype

  • Genetic Component

  • Can be result of TBI

  • Head Injuries can worsen Irlen™ symptoms

  • High correlation with mood swings and depression

  • Irlen™ Syndrome worsens mood disorders and contributes to anxiety disorders; can lead to self medication with alcohol and other drugs

  • Stress induced by visual onslaught of light increases susceptibility to physical symptoms and fatigue (Dobrin, R. 2005)

For Screening information please contact: or 401-207-4670

For additional information on Irlen™ Syndrome: