Meares–Irlen syndrome

"The term Meares–Irlen syndrome is sometimes used to refer to the collection of symptoms and signs of visual fatigue when reading that are reduced when colour is used as therapy. Other terms are Irlen syndrome or Scotopic Sensitivity Syndrome (SSS). (The syndrome is not yet widely recognised by the medical and scientific communities, and there is no universal agreement on its name.) The symptoms of visual perceptual distortion in children with reading difficulty were first described by Olive Meares, but have been listed by Helen Irlen, as follows.

symptoms of Meares-Irlen Syndrome:

Some of the main symptoms are:

• glare from the page
• headaches when reading
• sore eyes when reading
• movement/blurring of print
  

(onset of symptoms varies and may depend on lighting conditions, style of text and quality of paper)."