Visual Stress Syndrome
Visual Stress is a neurological condition that affects how people process information. It causes the inability to see comfortably without distortion and…
Brain Scans of an individual with Visual Stress (aka Irlen Syndrome) reading with, and without their precision tinted lenses. The left hand images clearly show the cortical hyperexcitement that occurs when visual stress is triggered. The result is the physical discomfort and perceptual distortions that people with visual stress suffer.
BBC produced a special on Kara Tointon, a UK personality with Dyslexia. In the process of her treatment, she was prescribed precision tinted green glasses that help her to read (and remember) her lines, as well as enjoy reading a book for pleasure for the first time. See our Videos section for the full series as well as the short form of the lens section.
The first term used to identify Visual Stress was Irlen Syndrome, after Helen Irlen, one of the first to discover it. Eventually, Olive Meares, and even earlier discoverer, was given credit and the name Meares-Irlen Syndrome was given. Now, scientists and researchers primarily refer to it as Visual Stress, or more specifically to show distinction from visual stress from ocular motor problems, Pattern-related Visual Stress of PRVS is used.
A 2011 study by researchers at Michigan State University performed functional MRI brain scans on migraine patients. After viewing images that would normally aggravate migraine sufferers, 70% of the individuals studied reported relief as soon as precision tinted lenses were worn. The scans demonstrated this relief as a reduction in the cortical hyper-activation. This level of success was achieved when the patients wore lenses tinted in their individually selected colour.
The International Institute of Colorimetry, formed in 2009, is committed to raising awareness in schools, relevant professions and the community at large, of the need for early diagnosis of the problem of Visual Stress. The current Board members are drawn from research, education and vision science as well as parent representation. They have each worked closely with the research and development or with individuals who have benefited significantly from the precision tinted lenses.
Precision Tinted lenses have been shown to relieve the symptoms of Visual Stress. Cerium (UK based) continues to support further research into colour and its benefits and work closely worldwide with professionals and academic bodies to ensure that all who benefit from colour do so through scientifically based solutions.