Entries in Color-Filtering Lenses (1)


Color-Filtering Lenses: Better Reading for Dyslexics?

Jupiterimages/Thinkstock(PHILADELPHIA) -- Specially tinted lenses originally developed for color blindness are helping some U.S. dyslexics read faster and see words more clearly, confirming the claims of the lenses' British inventor and the company that started selling them here in September.

Optician and researcher David Harris began developing the colored lenses in England in the 1980s for the 1 in 10 people with some degree of color blindness. However, he found that by altering the wavelength of light that reaches the eye, the tinted lenses reduced visual distortions that make reading a chore for many people with dyslexia, a learning disability often linked to poor academic performance. On his website, Harris says the lenses can help some of the 1 in 5 people with reading disorders, especially the 74 percent of dyslexia sufferers with visual distortions.

ChromaGen Vision lenses, available as prescription contacts or eyeglasses that resemble gray-tinted sunglasses, incorporate combinations of 16 color filters. Since the company launched its U.S. sales campaign in September, about 100 eye specialists in 30 states have been dispensing them, said ChromaGen Vision CEO Ted Edwards Jr. Certified providers, who have undergone about an hour of online training and paid $1,500 for kits to test the lenses on patients, have prescribed them to about 500 U.S. patients so far.

Copyright 2011 ABC News Radio

ABC News Radio