Phototherapy has been used clinically for over ninety years in the field of optometry and is proven to be both safe and effective with a high rate of success.
In 1999, Dan Oren, MD, PhD, researcher for Yale University and the National Institutes of Health (NIH) indicated that 50% of the entire blood volume in the body passes through the eyes in 40 minutes, and that there is a biochemical mechanism of light involving hemoglobin within the blood, allowing the eyes to be an appropriate portal for phototherapy treatment.
Retinal light receptors on the back of the eye connect to non-visual neural centers like the hypothalamus and pineal glands in the brain. These centers influence hormonal, chemical, and electrical balances, which affect all mind-body functions, including vision. By receiving specific light frequencies through their eyes, patients experience dramatic changes in their vision, bodies, and minds.
Children with learning problems and adults under visual stress often have a reduced perceptual visual field. This affects the volume of information they can process through their eyes. A reduced perceptual visual field affects all aspects of daily living including academic achievement, work proficiency and athletic performance. Symptoms of a limited perceptual visual field include, loss of place while reading, skipping of lines or words, words moving on the page and reduced comprehension. Limited peripheral awareness may lead to difficulty with balance, coordination, driving and sports performance.
Research studies by Dr. Liberman, Dr. Ingersoll and Dr. Kaplan provide evidence that children with learning problems have a reduction in the sensitivity of their peripheral vision. Students who received academic tutoring or vision therapy without the inclusion of phototherapy showed significantly less improvement in visual skill or academic performance than the student group receiving academic tutoring, vision therapy and phototherapy. During and after phototherapy they demonstrated improvement of peripheral vision and visual skills.
All three studies found profound improvements in the children who used phototherapy compared with subjects matched for age and academic success, who did not.
The Clarity Chair helps to expand visual fields enhancing peripheral vision, reading and visual processing.