BIOGRAPHY

My initial studies of epilepsy and techniques for treatment led to research on vision and health. In 1984 it became evident that certain patterns can provoke pattern glare and this led (rather indirectly) to the discovery in 1988 that fluorescent lighting causes headaches and eye-strain because of the invisible flicker it emits. In 1991 a system for ophthalmic tinting was designed, followed in 1995 by coloured overlays, now in use in optometric and ophthalmic practice. In 1995 a unified theory of visual stress, was proposed, see Visual Stress (Oxford University Press, 1995). I am currently investigating the way in which visual and visuo-perceptual difficulties contribute to reading disorders.

RECENT PUBLICATIONS

You can obtain a complete list of publications, some of which are available in .pdf format. There is also a list of industrial products.
You may be interested in a web site devoted entirely to information on the use of colour for the treatment of reading difficulty, headaches, eye-strain and photosensitive epilepsy.