The larger study that was a double masked, placebo-controlled trial was published in 1999 in an American peer-reviewed journal (Harris D & MacRow-Hill SJ (1999) Application of ChromaGen haploscopic
lenses to patients with dyslexia: a double-masked, placebo-controlled trial.
Each lens is tinted a different colour using a range of what are called haploscopic
The glasses have special lenses with "haploscopic
" filters designed to reduce distortions.
ANGELA REPLIES: I think your husband is talking about ChromaGen haploscopic
Professor Arnold Wilkins of Essex University later described the binocular prescription of ChromaGen lenses, as used in this study, as a "haploscopic
system", since each eye is assessed separately but with binocular vision in place.