Irlen syndrome is a disorder that affects the perception of seeing in your brain. It affects the way in which the brain perceives visual information causing distortion of words, images and environment. It may cause various behavioral as well as physical problems in children. Irlen syndrome is also called as Asfedia or visual stress. Using colored overlay sheets and tinted glasses can help the person to overcome the intensity of problem.
Symptoms :
The range of symptoms is not the same for all persons. Often, the symptoms can be detected during childhood and may continue for the rest of their life. Children with Irlen syndrome may have eye strain, headache (moderate to severe), fatigue and problems with perception of depth. Some children may not be able to read in fluorescent lights and can feel discomfort while observing busy patterns of light.
For them the text on the board or paper appears to move or shake making them unable to read. They may have problems in seeing things in extreme bright conditions or dark. In rare cases, they may develop epileptic seizures related to pattern glare.