Professor Wilkins' website.

There is information on:

· School lighting

· Coloured overlays

· Suitable techniques for testing with overlays

· How many overlay colours are necessary

· Visual stress and Classroom management

· Rate of Reading Test

· Coloured glasses and the Intuitive Colorimeter

· Independent review of the scientific literature.

· Wilkins' publications

· frequently asked questions

· Q and A concerning visual stress (in preparation)

· Optometrists who use the Intuitive Colorimeter listed on. 1. Society for Coloured Lens Prescribers 2. The manufacturers site

· Links for optometrists

Imaging studies of patients with migraine have shown that it is only when the shade of coloured spectacles is precisely chosen for optimal comfort that a reduction in an otherwise abnormally large blood oxygenation occurs. Given the general association between elevated cortical blood oxygenation and visual discomfort, this tends to support other evidence that a precise shade may be necessary for a beneficial clinical effect.

Declaration of interest: The Medical Research Council (MRC) owns the rights to the Intuitive Overlays. The rights to the latest Intuitive Colorimeter are owned by the University of Essex. All royalties have been donated to support the Institute of Optometry (a charity) and students at the University of Essex. The University of Essex does not necessarily endorse the content on this site.

Arnold Wilkins 2024